Sewer Geotechnical Report
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Transcript of Sewer Geotechnical Report
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Appendix H SPECIALIST STUDIES
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Geotechnical
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Ter rat es t Preb en Naid o o & A s s o c iat es
CAMPERDOWN NEW BULK SEWER RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
GEOTECHNICAL REPORT
CONTENTS
1. INTRODUCTION _______________________________________________ 1
2. A PPOINTMENT _______________________________________________ 1
3. IN FO R MATIO N AVA ILA BL E _____________________________________ 1
4. SITE DESCRIPTION ____________________________________________ 2
5. FIELDW ORK __________________________________________________ 2
5.1. Trial pits _________________________________________________ 2
5.2. Dynamic Cone Penetration Tests _____________________________ 2
6. G EN ER AL G EO LO G Y __________________________________________ 3
6.1. Fill Materials______________________________________________ 3
6.2. Transported Soils _________________________________________ 3
6.2.1. Colluvial Soils __________________________________________ 36.2.2. Pedogenic Soils_________________________________________ 3
6.3. Residual Shale Soils and Weathered Shale Bedrock _____________ 4
6.4. Residual Sandstone Soils and Weathered Sandstone ____________ 4
7. GROUNDWATER ______________________________________________ 4
8. LA B ORATORY TESTING ________________________________________ 4
9 G EO TECH N IC AL EVALU A TIO N AN D R EC O MMEN D ATIO N S 7
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15. APPEN D IX B: G EO LO G IC AL PR O FILES _________________________13
16. APPEN D IX C : D C P TEST R ESU LTS _____________________________15
17. APPEN D IX D : LA BO R ATO R Y TEST R ESU LTS ____________________16
18. APPEN D IX E: G EO LO G IC AL LO N G SEC TIO N S _________________ 18-16
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CAMPERDOWN NEW BULK SEWER RETICULATION NETWORKAND WASTE WATER TREATMENT WORKS PLANT
GEOTECHNICAL REPORT
1. INTRODUCTION
This report presents the results of a geotechnical investigation undertaken for theproposed new bulk sewer reticulation network and waste water treatment works plantin Camperdown near Pietermaritzburg, KwaZulu-Natal. It is intended that theproposed development will comprise the following: Sludge ponds, aeration tanks, a
concrete channel, a chlorine contact channel structures and about 15 km longincoming sewer reticulation pipelines and other ancillary structures.
The objectives of the geotechnical investigation of the sewer reticulation routes were:
To define the nature and variability of the founding conditions for theproposed reticulation pipelines,
To determine the geology along the proposed reticulation routes, To determine the classes of excavation along the reticulation routes,
To provide and assessment of the suitability of the in situ materials for the useas Selected Granular Material (bedding) and Selected Back Fill Material,
To identify any potentially problematic geological conditions along thereticulation routes.
The aim of the geotechnical investigation at the proposed waste water treatment
works plant site is to provide a suitable founding medium for the plant, discussproblematic conditions and provide recommendations for foundation design.
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4. SITE DESCRIPTION
The proposed sewer reticulation network is located within the Camperdown townnear Pietermaritzburg in KwaZulu-Natal. The waste water treatment works plant issituated on the western side of the Rainbow Chicken Complex in Camperdown.
Access to the site is off the N3 National Road, Camperdown offramp which joins theroads in the Camperdown town.
Topographically, the eastern side of the area within which the proposed bulk sewer
network is located is relatively flat, anticipated to be created on a cut to fill platform ofthe Camperdown CBD area. The western side of the area is characterised bydrainage channels and hills. No major drainage channels were noted o n site. The
waste water treatment works plant is located on a gently to moderately s lopingtopography.
A Site Plan is attached as Figure 1 and a Geological Plan is included as Figure 2,both in Appendix A.
5. FIELDWORK
The field investigation was carried out during the month of July 2011 and comprisedthe following:
i) Trial pits, andii) Dynamic Cone Penetrometer Tests.
5 1 T i l it
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and to provide an indication to the depths at which hard material occurs. The testswere advanced to refusal depths between 0.6 and 2.4 metres below ground level.
The results of the DCP tests are included in Appendix C of this report. The resultshave been used to derive, empirically, Estimated Allowable Safe Bearing Pressures(EASBP) for the soils. The estimation of the EASBPs is based on Terzaghissettlement chart for 25mm of settlement, using empirical correlations, from the DCPtest results.
The DCP test results indicate that the EASBPs under the site are generally high at
depths normally associated with normal founding in shale bedrock.
6. GENERAL GEOLOGY
The site is generally underlain by fill, transported and residual soils overlying shaleand sandstone bedrocks of the Dwyka Formation. The 1:250 000 Geological MapSeries, 2930 Durban indicate the area to be intruded by Jurassic Aged dolerites.Dolerite intrusions were not encountered during investigation.
6.1. Fill Materials
Fill material occurs on selected positions of the site and comprise yellowish brown todark reddish brown and brown, silty clayey gravel and gravelly silty clays with gravelcomponents comprising weathered shale. The fill materials occur from surface levelthrough to depths between 0.1 and 1.6 metres below existing ground level.
6.2. Transported Soils
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at an average depth of 0.9 meters, in the range 0.6 and 1.6 metres below existingground level. This horizon is quite thick in place, for an example it exceeds 2.5
metres in TP24.
6.3. Residual Shale Soils and Weathered Shale Bedrock
The weathered shale bedrock is either directly overlain colluvial soils or anintervening layer of residual shale soils comprising dark brown to dark orangey
brown, mottled and speckled dark greyish brown, firm to stiff, gravelly silty clays togravelly clayey silt with gravel components comprising weathered shale and
ferruginised nodules. The residual soils occur at an average depth of 0.5 metresbelow existing ground level.
The underlying bedrock comprises completely to highly weathered becoming lessweathered with depth, very closely to closely jointed, very soft to soft rock strengthimproving with depth, shale.
6.4. Residual Sandstone Soils and Weathered Sandstone
Residual sandstone soils developed from the complete weathering of sandstone
bedrock is either overlain by colluvial soils or ferruginised horizon. These soilscomprise dark reddish brown, mottled and speckled yellowish brown and darkgreyish brown, stiff to very stiff, silty c lays to clayey silt. These soils occur at anaverage depth of 0.7 metres below existing ground level.
The underlying bedrock comprise purplish brown a nd brown, mottled and speckledlight grey, completely to highly weathered, very closely to closely jointed, soft throught di h d k t th t d t
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41151 5 August 2011Camperdown Sewer Treatment PlantGeotechnical Investigation Report
T:\ACTIVE PROJECTS\41151 - Camperdown Sewer Treatment Plant (GN)\04 Documents and Reports\J &G Reports\Geotech report 41151.doc
Table 1
Particle Size Distribution and Atterberg Limit Determination Tests
PitNo
Depth
(m)
Material
Description
Particle Size % Atterberg Limits %
GM
Modified
AASHTO
CBR Values (%)
Compaction MDD (%) Classification and
ActivityClay Silt Sand Gravel LL PI LS
Equiv.
PI
MDD
(kgm3)
OMC
%90 93 95 100
TP2 1.1-1.5
Sandy silt.
Weathered
shale.
9 46 27 18 33 11 6 7.9 1.01 1681 17.7 2 3 4 5 A-6 (3), Low
TP3 0.6-1.3
Clayey silty
sand. Residual
shale
12 34 31 23 41 16 7 10.7
A-7-6(3), Low
Anticipate G10 or
less
TP14 0.4-1.3 Silty sand.
Residual shale.11 41 41 7 34 17 8 14.8 0.66 17.31 18.8 11 16 20 40 A-6(7), G8, Low
TP19 0.7-1.5Silty sand.
Residual shale.13 38 49 0 36 18 8 16.9 A-6(7), Medium
TP23 0.5-1.2Silty Sand.
Residual shale.9 43 32 16 40 14 7 10.5 A-6(5), Low
TP24 1.1-2.8
Silty Sand.
Ferruginised
horizon.
7 32 48 13 27 7 4 5.2 A-4(1), Low
TP27 1.6-1.8Sandy Silt.
Residual shale.15 53 17 15 43 18 8 14.6 A-7-6(8), Medium
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41151 6 August 2011Camperdown Sewer Treatment PlantGeotechnical Investigation Report
T:\ACTIVE PROJECTS\41151 - Camperdown Sewer Treatment Plant (GN)\04 Documents and Reports\J &G Reports\Geotech report 41151.doc
Pit
No
Depth
(m)
Material
Description
Particle Size % Atterberg Limits %
GM
Modified
AASHTO
CBR Values (%)
Compaction MDD (%) Classification and
ActivityClay Silt Sand Gravel LL PI LS
Equiv.
PI
MDD
(kgm3)
OMC
%
90 93 95 100
TP28 1.6-2.0
Silty sand.
Weathered
sandstone.
4 28 63 5 35 7 4 5.9 A-4(0), Low
TP31 0.2-1.0Silty sand.
Colluvium.3 28 45 24 17 4 2 2.5 A-2-4(0), Low
LL- Liquid Limit MDD Maximum Dry Density Classification in terms of AASHTOLS - Linear Shrinkage OMC Maximum Moisture Content TRH14 (1985)
PI - Plasticity Index GM Grading Modulus Unified SystemEquiv PI Equivalent Plasticity Index of whole sample
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9. GEOTECHNICAL EVALUATION AND RECOMMENDATIONS
9.1. Proposed Pipeline Network
More detailed information relating to the geotechnical conditions of the pipeline isincluded in the Geological Long Sections contained in Appendix E. The subsoilconditions between the test positions have been inferred using professional
judgement.
The Geological Long Sections of each section of the pipeline have been compiled
based on the information gained during investigation. These sections include:-
The discrete number of each trial pit position,
The coordinates of each trial pit position (WGS 84),
A schematic summary of the class of excavation,
Details of any soil sample taken,
The suitability of the in situ material for use as a bedding material, and
General comments.
9.2. Excavation Requirements
The trenchability of the materials underlying the proposed pipeline has been assedaccording to the criteria published by SANS1200. Descriptions of excavationsclasses are given in Table 3 below.
Table 3: Definitions of Excavation Classes
C
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If excavations are carried out over rainy periods, groundwater seepage may beencountered, and problems related to collapse of trench sidewalls are expected to
occur, particularly where the sidewalls comprise sandy materials of colluvial and orresidual soils as evidenced in TP 20, where minor sidewall collapse was observed.
9.3. Material Evaluation and Pipe Bedding
In terms of the SANS 1200 LB (1983) concerning bedding requirements, buried
pipelines require two types of selected material. Those selected materials are termedSelected Granular Material and Selected Fill Material.
From both a visual assessment of the materials encountered in the trial pits and theresults of the laboratory tests in Table 1, the following conclusions can be maderegarding the suitability of the in situ materials for the use in the construction of thebedding layers of the pipeline:-
Selected Granular Material is described as granular, non-cohesive andsingularly graded between 0.6 and 0.9mm. The material must be freedraining and have a compactibility factor not exceeding 0.4.
Selected Back Fill Material is defined as a material with a Plasticity Index
(PI) not exceeding 6, free from lumps, vegetation and stones of adiameter exceeding 30mm.
In general, the Selected Granular Material is used as bedding material to supportthe pipe, while the Selected Back Fill Material is used as blanket material over the
crown of the pipe. General Backfill material, which is placed above the blanketmaterials, up to ground level normally, consists of material originally removed from
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Consideration should also be given to carefully replacing the grass cover sods backover the trench to encourage re-growth to stabilise the disturbed soils.
9.5. Trench Stability
In general it is anticipated that vertical sidewall of trench excavations will be stableover the short term. The sidewalls of the trial pits put down for investigation werestable while the investigation was in progress. It is considered that in general
trenches not exceeding 1.5 metre depth can remain open for periods of up to 2 dayswithout significant collapse provided no significant rainfall and associated rise in
groundwater seepage occurs during this period. If saturation of the trench occurs,sidewalls of trenches deeper than 1m should either be battered to a safe angle of1V:2H (cohesionless) or supported laterally. In this respect it is recommended thatthe length of trenches likely to be left open for any sustained period be limited toprevent deterioration in the trench stability.
10. GENERAL ASSESSMENT OF THE WASTE WATER TREATMENT WORKS(WWTW) SITE
10.1. Proposed Waste Water Treatment Works Plant
It is understood that the waste water treatment works plant will comprise 65m lengthopen concrete channel, two 13.5 metre diameter clarifiers, aeration tank, sludge bedsand chlorine contact channel.
11. RECOMMENDATIONS
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11.2. Drainage
It is imperative that site drainage and landscaping is implemented in all areas toprevent surface ponding, where subsequent ingress into fills and foundations has thepotential to cause destabilisation over time, such as differential settlements due tolowered subsoil strength. This must also include the conveyance of all runoff androof discharge away from the structures and into the natural drainage lines.
11.3. Cut and Fill Design
General good practice for cuts and fills of less than 2 m height should be followed.Cuts and fills that exceed 2m should be designed with special considerations appliedto them. The fill must be compacted in layers not exceeding 200mm or the
appropriate layer thickness for the compaction plant, whichever is the lesser.Compaction should be to at least 93% of the Modified AASHTO maximum drydensity at optimum moisture content. Provided that the construction is done properlyit is expected that a slope of 1 in 2.5 should be adequate for the stability of theconstructed slope.
All cut and fill slopes must be suitably vegetated as soon as possible afterconstruction to reduce the risk of erosion and instability due to infiltration.
Although excavations are not expected to be problematic, the contractor will need toappoint an excavation supervisor in terms of section 11 of the ConstructionRegulations 2003.
11.4. Earthworks
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The investigation undertaken has concluded that the site is suitable for the proposeddevelopment, provided that the recommendations provided in this report are adhered
to.
The site is underlain by weathered shale and sandstone bedrocks of the DwykaFormation. The bedrocks are either overlain by transported or residual soils.
According to the specifications contained in SANS 1200 LB (1983), the in situ soilsunderlying the sit are not considered for use as Selected Back Fill Materials or asSelected Granular Materials. These materials will need to be imported to site.Selected in situ materials are suitable as Main Fill only.
Excavation conditions are generally soft mechanism excavation extending to
intermediate excavation in place.
Recommendations for the founding, drainage and earthworks at the proposedWWTW location are also provided.
Finally, it should be noted that the subsoil conditions contained in this report relate to
the information obtained from the trial pits and DCP tests put down for investigation.It is possible that variances to the anticipated subsoil conditions will be encounteredin other parts of the site during construction. It is therefore important that when suchvariances occur, they are reported to Terratest (Pty) Ltd so that timeous assessmentand recommendations for the necessary adjustments to construction procedure canbe made. It is also critical that Terratest inspect and approve foundation excavationsto confirm depth of founding and bearing pressures.
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14. APPENDIX A: PLANS
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15. APPENDIX B: GEOLOGICAL PROFILES
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP1Sheet 1 of 1
HOLE No:TP1Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.50
0.00
1.00
Slightly moist, greyish brown, firm silty CLAY. Colluvium.
Slightly moist, dark brown to dark orangey brown and dark greyish brown,stiff to very stiff, gravelly silty CLAY. Gravel components comprising
weathered shale and occasional ferruginised nodules. Residual Shale.
Yellowish brown, stained and streaked dark greyish brown, highly tomoderately weathered, very closely to closely jo inted, very soft to softrock strength improving with depth SHALE. Dwyka Formation
Scale1:20
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1.1--1.5m
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP2Sheet 1 of 1
HOLE No:TP2Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.60
0.00
1.10
Slightly moist, greyish brown, firm silty CLAY. Colluvium.
Dark orangey brown, mottled and speckled dark greyish brown, highly to
completely weathered, very closely to closely jointed, very soft to soft rockstrength, SHALE. Dwyka Formation
Yellowish brown, stained and streaked dark greyish brown, highly tomoderately weathered, very closely to closely jo inted, very soft to softrock strength improving with depth, SHALE. Dwyka Formation
Scale1:20
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0.6--1.30m
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP3Sheet 1 of 1
HOLE No:TP3Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.60
0.00
1.30
Slightly moist, greyish brown, firm silty CLAY. Colluvium.
Slightly moist, dark brown to dark orangey brown and dark greyish brown,
stiff to very stiff, gravelly silty CLAY. Gravel components comprisingweathered shale and occasional ferruginised nodules. Residual Shale.
Yellowish brown, stained and streaked dark greyish brown, highly tomoderately weathered, very closely to closely jo inted, very soft to softrock strength improving with depth, SHALE. Dwyka Formation
Scale1:20
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP4Sheet 1 of 1
HOLE No:TP4Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.50
0.00
0.90
Slightly moist, greyish brown, firm silty CLAY. Colluvium.
Slightly moist, dark brown to dark orangey brown and dark greyish brown,stiff to very stiff, gravelly silty CLAY. Gravel components comprising
weathered shale and occasional ferruginised nodules. Residual Shale.
Yellowish brown, stained and streaked dark greyish brown, highly tomoderately weathered, very closely to closely jo inted, very soft to softrock strength improving with depth, SHALE. Dwyka Formation
Scale1:20
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP5Sheet 1 of 1
HOLE No:TP5Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.30
0.00
0.70
1.90
Slightly moist, greyish brown, firm, silty CLAY. Colluvium.
Dark orangey brown, mottled and speckled dark greyish brown, highly tocompletely weathered, very closely to closely jointed, very soft to soft rockstrength, SHALE. Dwyka Formation
Yellowish brown, stained and streaked dark greyish brown, highly tomoderately weathered, very closely to closely jo inted, very soft to softrock strength improving with depth SHALE. Dwyka Formation
Scale1:20
NOTES
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP6Sheet 1 of 1
HOLE No:TP6Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.30
0.00
1.30
Slightly moist, greyish brown firm, silty CLAY. Colluvium.
Yellowish brown, stained and streaked dark greyish brown, highly tomoderately weathered, very closely to closely jo inted, very soft to softrock strength improving with depth, SHALE. Dwyka Formation
Scale1:20
NOTES
1) Refusal depth of a TLB machine at 1.30m on weathered shale.
2) No groundwater seepage.
3) No sidewall collaspe.
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP7Sheet 1 of 1
HOLE No:TP7Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.60
0.00
0.80
Slightly moist, greyish brown, firm, silty CLAY. Colluvium.
Slightly moist, dark orangey reddish brown, mottled and streaked dark
greyish brown, stiff to very stiff, gravelly silty CLAY. Gravel componentscomprising weathered shale. Residual Shale
Yellowish brown, stained and streaked dark greyish brown, highly tomoderately weathered, very closely to closely jo inted, very soft to softrock strength improving with depth, SHALE. Dwyka Formation.
Scale1:20
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP8Sheet 1 of 1
HOLE No:TP8Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.50
0.00
0.70
Slightly moist, greyish brown to brown, firm, silty CLAY. Colluvium.
Slightly moist, yellowish brown and greyish brown, firm to stiff, silty CLAYcontaining weathered shale gravel. Residual Shale.
Yellowish brown, stained and streaked dark greyish brown, highly tomoderately weathered, very closely to closely jo inted, very soft to softrock strength improving with depth, SHALE. Dwyka Formation
Scale1:20
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP9Sheet 1 of 1
HOLE No:TP9Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.60
0.00
0.80
1.10
Slightly moist, greyish brown to brown, firm, silty CLAY. Colluvium.
Slightly moist, yellowish brown and greyish brown, firm to stiff, silty CLAY
containing weathered shale gravel. Residual Shale.
Yellowish brown, stained and streaked dark greyish brown, highly tomoderately weathered, very closely to closely jo inted, very soft to softrock strength improving With depth, SHALE. Dwyka Formation
Scale1:20
NOTES
1) Refusal depth of a TLB machine at 1.10m on weathered shale.
2) No groundwater seepage.
3) No sidewall collapse.
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP10Sheet 1 of 1
HOLE No:TP10Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.30
0.00
1.10
Dry to slightly moist, greyish brown, firm to stiff, sandy CLAY containingferruginised nodules. Colluvium.
Yellowish brown, stained dark brown streaked dark greyish brown, highlyweathered, very closely to closely jointed, very soft to soft rock strengthimproving with depth, SHALE. Dwyka Formation.
Scale1:20
NOTES
1) Refusal depth of a TLB machine at 1.10m on weathered shale.
2) Difficult excavation of a TLB machine on weathered shale.
3) No groundwater seepage.
4) No sidewall collapse.
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP11Sheet 1 of 1
HOLE No:TP11Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.30
0.00
1.90
Dry to slightly moist, greyish brown, firm to stiff, sandy CLAY containingferruginised nodules. Colluvium.
Yellowish brown, stained dark brown streaked dark greyish brown, highlyweathered, very closely to closely jointed, very soft to soft rock strengthimproving with depth, SHALE. Dwyka Formation
Scale1:20
NOTES
1) Refusal depth of a TLB machine at 1 9m on weathered shale
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP12Sheet 1 of 1
HOLE No:TP12Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.50
0.00
1.20
1.50
Dry to slightly moist, greyish brown, firm to stiff, sandy CLAY containingferruginised nodules. Colluvium.
Slightly moist, dark brown, mottled yellow and red, stiff to very stiff,gravelly silty CLAY. Gravel components comprising ferruginised nodules.
Ferruginised Horizon.
Yellowish brown, stained dark brown, streaked dark greyish brown, highlyweathered, very closely to closely jointed, very soft to soft rock strengthimproving with depth, SHALE. Dwyka Formation
Scale1:20
NOTES
1) Refusal depth of a TLB machine at 1.50m on weathered shale.
2) No groundwater seepage.
3) No sidewall collapse.
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP13Sheet 1 of 1
HOLE No:TP13Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.60
0.00
1.30
1.60
Dry to slightly moist, greyish brown, firm to stiff, sandy CLAY containingferruginised nodules. Colluvium.
Slightly moist, dark brown, mottled yellow and red, stiff to very stiff,
gravelly silty CLAY. Gravel components comprising ferruginised nodules.Ferruginised Horizon.
Yellowish brown, stained dark brown streaked dark greyish brown, highlyweathered, very closely to closely jointed very soft to soft rock strength
improving with depth, SHALE. Dwyka Formation
Scale1:20
NOTES
1) Refusal of a TLB machine at 1.60m on weathered shale.
2) No groundwater seepage.
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0.4--1.3m
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP14Sheet 1 of 1
HOLE No:TP14Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.40
0.00
1.30
1.50
Dry to slightly moist, greyish brown, firm to stiff, sandy CLAY containingferruginised nodules. Colluvium.
Slightly moist, dark reddish brown, mottled yellowish brown, stiff to verystiff, silty CLAY containing occasional ferruginised nodules. ResidualShale.
Yellowish brown, stained dark brown, streaked dark greyish brown, highlyweathered, very closely to closely jointed, very soft to soft rock strength
improving with depth, SHALE. Dwyka Formation
Scale1:20
NOTES
1) Refusal depth of a TLB at 1.5m on weathered shale.
2) No groundwater seepage.
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP15Sheet 1 of 1
HOLE No:TP15Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.50
0.00
2.00
Dry to slightly moist, greyish brown, firm to stiff, sandy CLAY containingferruginised nodules. Colluvium.
Yellowish brown, stained dark brown, streaked dark greyish brown, highlyweathered, very closely to closely jointed, very soft to soft rock strengthimproving with depth, SHALE. Dwyka Formation
Scale1:20
NOTES
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP16Sheet 1 of 1
HOLE No:TP16Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.70
0.00
1.50
2.20
Dry to slightly moist, greyish brown, firm to stiff, sandy CLAY containingferruginised nodules. Colluvium.
Slightly moist, dark brown, mottled yellow and red, stiff to very stiff,gravelly silty CLAY. Gravel components comprising ferruginised nodules.Ferruginised Horizon.
Slightly moist, yellowish brown, streaked dark greyish brown, stiff to verystiff, gravelly CLAY. Gravel components comprising weathered shale.Completely Weathered Shale.
Scale1:20
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP17Sheet 1 of 1
HOLE No:TP17Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.50
0.00
1.20
1.60
Dry to slightly moist, greyish brown, firm to stiff, fissured, silty CLAY.Colluvium.
Slightly moist, brown to greyish brown, mottled dark greyish brown, firm tostiff, silty CLAY. Residual Shale.
Yellowish brown, stained dark greyish brown, highly weathered, veryclosely to closely jointed, very soft to soft rock strength improving withdepth, SHALE. Dwyka Formation
Scale1:20
NOTES
1) Refusal depth of a TLB machine at 1.60 on weathered shale.
2) No Groundwater seepage.
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP18Sheet 1 of 1
HOLE No:TP18Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.60
0.00
1.20
2.10
Dry to slightly moist, greyish brown, firm to stiff, fissured, silty CLAY.Colluvium.
Slightly moist, brown to greyish brown, mottled dark greyish brown, firm to
stiff, silty CLAY. Residual Shale.
Yellowish brown, stained dark greyish brown, highly weathered, veryclosely to closely jointed, very soft to soft rock strength improving withdepth, SHALE. Dwyka Formation
Scale1:20
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0.7--1.5m
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP19Sheet 1 of 1
HOLE No:TP19Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.70
0.00
1.70
Dry to slightly moist, greyish brown, firm to stiff, fissured, silty CLAY.Colluvium.
Slightly moist, brown to greyish brown, mottled dark greyish brown, firm tostiff, silty CLAY. Residual Shale.
Slightly moist, yellowish brown, stained dark reddish brown, stiff clayeySILT. Completely Weathered Shale.
Scale1:20
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2.0m
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP20Sheet 1 of 1
HOLE No:TP20Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.10
0.00
0.20
1.40
2.00
Slightly moist, yellowish grey, loose, silty clayey GRAVEL. Gravelcomponents comprising shale. Fill.
Moist brown, very loose, coarse to very coarse grained, very micaceous,SAND. Fill.
Slightly moist, yellowish brown, brown, dark greyish brown and darkbrown, stiff to very stiff, gravelly silty CLAY containing refuse. Gravelcomponents comprising weathered shale. Fill.
Slightly moist, orangey pinkish brown, streaked and mottled dark greyish
brown, stiff to very stiff, silty CLAY. Completely Weathered Sandstone.
Scale
1:20
NOTES
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP21Sheet 1 of 1
HOLE No:TP21Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.70
0.00
2.00
Dry to slightly moist, light brown and greyish brown, loose to mediumdense, medium grained, SAND containing numerous shale gravel. Fill.
Slightly moist, dark reddish brown, mottled orangey brown, firm to stiff,silty CLAY.
Slightly moist, orangey pinkish brown, streaked and mottled dark greyishbrown, stiff to very stiff, silty CLAY. Completely Weathered Sandstone.
Scale
1:20
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0.5--1.2m
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP23Sheet 1 of 1
HOLE No:TP23Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.50
0.00
Dry to slightly moist, dark reddish brown, brown and dark greyish brown,firm to stiff, gravelly silty CLAY. Fill.
Slightly moist, dark brown becoming orangey brown with depth, mottledand speckled dark greyish brown, stiff, silty CLAY. Residual Shale.
Scale
1:20
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2.0m1.1--2.80m
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP24Sheet 1 of 1
HOLE No:TP24Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
1.10
0.00
Slightly moist, greyish brown, firm to stiff, silty CLAY with top 0.2mcontaining root materials. Colluvium.
Slightly moist to moist dark brown and reddish brown, mottled greyishbrown, firm to stiff, silty CLAY containing ferruginised nodules.Ferruginised Horizon.
Scale
1:20
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP25Sheet 1 of 1
HOLE No:TP25Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.30
0.00
1.00
1.60
Slightly moist, greyish brown, firm, silty sandy CLAY containing numerousgravel. Fill.
Slightly moist, light grey, mottled yellow, loose to medium dense, mediumto coarse grained, slightly micaceous, silty clayey SAND. Fill
Slightly moist, greyish brown to brown, firm, sandy CLAY. Colluvium
Slightly moist to moist, dark brown and reddish brown, mottled greyishbrown, firm to stiff, silty CLAY containing ferruginised nodules whichdecreases with increase in depth. Ferruginised Horizon.
Scale
1:20
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP26Sheet 1 of 1
HOLE No:TP26Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
1.10
0.00
2.00
Dry to slightly moist, brown, loose to medium dense, medium grained,gravelly SAND containing a layer of gravel between 1.0 and 1.1m. Fill.
Slightly moist to moist, dark brown and reddish brown, mottled greyishbrown, firm to stiff, silty CLAY containing ferruginised nodules.Ferruginised Horizon.
Scale
1:20
NOTES
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1.6--1.8m
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP27Sheet 1 of 1
HOLE No:TP27Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.60
0.00
1.60
1.80
Slightly moist, greyish brown, firm to stiff, silty CLAY. Colluvium.
Slightly moist, orangey reddish brown, mottled black and yellow, dense tovery dense, silty clayey GRAVEL. Gravel components comprisingferruginised nodules. Ferruginised Horizon.
Slightly moist, yellowish brown, mottled dark greyish brown, stiff, gravellyclayey SILT. Gravel components comprising weathered shale. ResidualShale.
Yellowish brown, stained dark greyish brown and reddish brown, highlyweathered with completely weathered zones, very closely to closely
jointed (recovered as gravel), very soft to soft rock strength improving with
Scale
1:20
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1.6--2.0m
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP28Sheet 1 of 1
HOLE No:TP28Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.60
0.00
1.60
Dry to slightly moist, greyish brown, firm to stiff, fissured, silty CLAY.Colluvium
Slightly moist, reddish brown mottled and speckled yellow, firm to stiff,silty CLAY.
Slightly moist, light orangey reddish brown mottled and speckledyellowish brown, firm to stiff, SILT. Completely Weathered Sandstone.
Scale
1:20
C
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP29Sheet 1 of 1
HOLE No:TP29Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.60
0.00
1.50
Dry to slightly moist, greyish brown, medium dense, medium grained, siltySAND containing gravel. Fill
Slightly moist, orangey brown mottled and speckled dark greyish brown,firm to stiff, gravelly silty CLAY. Gravel components comprisingweathered shale. Residual Shale.
Orangey brown, stained and streaked dark greyish brown, highly tocompletely weathered (but mostly completely weathered), very soft tosoftrock strength, SHALE. Dwyka Formation.
Scale
1:20
PREBEN NAIDOO & SSOCIATES TP30TP30
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1.5--2.0m
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP30Sheet 1 of 1
HOLE No:TP30Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.60
0.00
1.20
1.50
2.20
Slightly moist, greyish brown, firm to stiff, gravelly silty CLAY. Colluvium.
Slightly moist, yellowish orangey brown, mottled yellowish brown and lightgrey, medium dense silty clayey GRAVEL. Gravel componentscomprising shale. Residual Shale.
Slightly moist, reddish brown to dark orangey brown, mottled andspeckled yellowish brown, firm to stiff, gravelly silty CLAY. Gravelcomponents comprising weathered shale and ferruginised nodules.
Residual Shale.
Slightly moist, dark orangey yellowish brown, firm to stiff, gravelly clayeySILT. Gravel components comprising shale. Completely Weathered Shale.
Scale
1:20
PREBEN NAIDOO & SSOCIATES HOLE N TP31HOLE N TP31
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0.2--1.0m
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP31Sheet 1 of 1
HOLE No:TP31Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.20
0.00
1.00
Slightly moist, dark brown mottled yellowish brown, firm, silty CLAY. Fill
Slightly moist, greyish brown, medium dense, medium grained, clayeySAND. Colluvium.
Slightly most, dark brown and dark reddish brown, mottled dark greyishbrown, dense to very dense, clayey GRAVEL. Gravel componentscomprising ferruginised nodules. Feruginised Horizon.
Scale
1:20
PREBEN NAIDOO & aSSOCIATES HOLE N TP32HOLE N TP32
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP32Sheet 1 of 1
HOLE No:TP32Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.50
0.00
0.70
1.40
Dry to slightly moist, greyish brown to brown, firm, silty CLAY containingshale gravel. Colluvium.
Slightly moist, greyish brown, medium dense to dense, silty clayeyGRAVEL. Gravel components comprising ferruginised nodules.Ferruginised. Horizon
Slightly moist, brown to dark brown, mottled yellowish brown, stiff to verystiff, gravelly silty CLAY. Gravel components comprising ferruginisednodules.
Yellowish brown, stained dark greyish brown, highly to completely
weathered, very closely to closely jointed, very soft to soft rock strengthimproving with depth, SHALE. Dwyka Formation.
Scale
1:20
PREBEN NAIDOO & aSSOCIATES HOLE No: TP33HOLE No: TP33
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP33Sheet 1 of 1
HOLE No:TP33Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.50
0.00
1.10
1.80
2.20
Slightly moist, greyish brown, medium dense, silty SAND containingferruginised nodules. Colluvium.
Slightly moist, yellowish brown and greyish brown, firm to stiff, gravellyCLAY. Gravel components comprising weathered shale. Residual Shale.
Yellowish brown, stained dark greyish brown and dark brown, highly tocompletely weathered, very closely to closely jointed, very soft to soft rockstrength, SHALE. Dwyka Formation.
Dark brown and yellowish brown, highly weathered, very closely to closelyjointed, very soft to soft rock strength improving with depth SHALE.
Scale
1:20
PREBEN NAIDOO & aSSOCIATES HOLE No: TP34HOLE No: TP34
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP34Sheet 1 of 1
HOLE No:TP34Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.50
0.00
1.80
Dry to slightly moist, greyish brown, firm, fissured, silty CLAY containingoccasional shale gravel. Colluvium.
Dark brown, stained orangey brown and dark greyish brown, highly tomoderately weathered, very closely to closely jo inted, very soft to softrock strength improving with depth, SHALE. Dwyka Formation
Scale
1:20
NOTES
1) Refusal depth of a TLB machine at 1.80 on weathered shale.
PREBEN NAIDOO & aSSOCIATES HOLE No: TP35HOLE No: TP35
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP35Sheet 1 of 1
HOLE No:TP35Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.20
0.00
0.60
1.90
Dry brown, medium dense, gravelly silty SAND. Fill.
Slightly moist, greyish brown, firm, fissured, silty CLAY. Colluvium.
Slightly moist, dark reddish brown, mottled and speckled dark greyishbrown and yellowish brown, stiff to very stiff, gravelly silty CLAY. Gravel
components comprising ferruginised nodules. Ferruginised Horizon.
Slightly moist, light brown, mottled and speckled dark greyish brown andyellowish brown, stiff to very stiff, gravelly silty CLAY. Gravel componentscomprising ferruginised nodules. Ferruginised Horizon.
Scale
1:20
PREBEN NAIDOO & aSSOCIATES HOLE No: TP36HOLE No: TP36
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PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP36Sheet 1 of 1
HOLE No:TP36Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.40
0.00
1.00
Dry, orangey yellowish brown and light grey, firm to stiff, gravelly siltyCLAY. Gravel components comprising 40% shale. Fill.
Purplish brown and dark brown, mottled and speckled light grey, highly tomoderately weathered, very closely to closely jointed, soft to medium hardrock strength, Quartz Sandstone. Dwyka Formation.
Scale
1:20
NOTES
1) Refusal depth of a TLB machine at 1.0m on weathered sandstone.
2) No groundwater seepage.
3) No sidewall collapse.
PREBEN NAIDOO & aSSOCIATES HOLE No:TP37HOLE No:TP37
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CAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
Sheet 1 of 1Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.70
0.00
1.70
Slightly moist, dark greyish brown, firm, fissured, silty CLAY containingroot materials. Colluvium.
Slightly moist, dark reddish brown, mottled and speckled yellowish brownand dark greyish brown, stiff to very stiff, silty CLAY containingferruginised nodules. Residual Sandstone.
Slightly moist dark orangey brown, mottled yellowish brown, stiff to verystiff, clayey SILT. Completely Weathered Sandstone.
Scale
1:20
PREBEN NAIDOO & aSSOCIATES HOLE No:TP38HOLE No:TP38
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CAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
Sheet 1 of 1Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.70
0.00
1.40
Slightly moist, greyish brown, firm, silty CLAY. Colluvium.
Slightly moist, dark brown, mottled reddish brown and yellowish brown,firm to stiff, silty CLAY. Residual Shale.
Slightly moist, orangey yellowish brown, mottled light grey and dark
greyish brown, stiff to very stiff, clayey SILT containing weathered shalegravel. Residual shale to Completely Weathered Shale.
Scale
1:20
PREBEN NAIDOO & aSSOCIATES HOLE No:TP39HOLE No:TP39
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CAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
Sheet 1 of 1Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.15
0.00
1.20
Dry greyish brown, mottled yellowish brown, firm, silty CLAY. Fill.
Slightly moist, greyish brown, firm to stiff, silty CLAY. Colluvium.
Slightly moist, dark reddish brown, stiff to very stiff, gravelly silty CLAY.Gravel components comprising ferruginised nodules.
Scale
1:20
PREBEN NAIDOO & aSSOCIATES HOLE No:TP40HOLE No:TP40
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CAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
Sheet 1 of 1Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.10
0.00
0.60
1.40
Dry greyish brown to brown, loose, medium grained, SAND. Fill.
Slightly moist, dark greyish brown, firm to stiff, fissured, silty SANDcontaining root materials. Colluvium.
Slightly moist, dark brown to reddish brown and dark greyish brown,mottled yellowish brown, firm to stiff, gravelly silty CLAY. Gravel
components comprising ferruginised nodules. Ferruginised Horizon.
Slightly moist, dark orangey brown, stiff to very stff, silty CLAY. Residual
Sandstone.
Scale
1:20
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORK
HOLE No:TP41HOLE No:TP41
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CAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
Sheet 1 of 1Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.30
0.00
0.70
1.70
Dry, greyish brown, medium dense to dense, fine to medium grained,gravelly SAND. Fill.
Slightly moist, dark reddish brown, mottled and speckled dark greyishbrown and orangey brown, firm to stiff, gravelly silty CLAY. Gravelcomponents comprising ferruginised nodules.
Slightly moist, orangey yellowish brown, mottled dark greyish brown
speckled light grey, stiff, clayey SILT. Residual sandstone to CompletelyWeathered Sandstone.
Slightly moist, light orangey yellowish brown, mottled dark greyish brownspeckled light grey, stiff to very stiff, clayey SILT. Completely WeatheredSandstone.
Scale
1:20
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORK
HOLE No:TP42HOLE No:TP42
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CAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
Sheet 1 of 1Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.70
0.00
1.40
1.70
1.90
Slightly moist, dark greyish brown, firm to stiff, fissured, silty CLAYcontaining root materials. Colluvium.
Slightly moist, reddish brown, mottled yellow, stiff, silty CLAY containing
occasional ferruginised nodules.
Slightly moist, light yellowish brown and light grey, mottled dark greyish
brown, stiff to very stiff, gravelly clayey SILT. Gravel componentscomprising weathered shale. Residual Shale.
Yellowish brown, stained dark greyish brown and orangey brown, highlyto completely weathered, very closely to closely jointed, very soft tomedium hard rock strength, SHALE. Dwyka Formation
Scale
1:20
NOTES
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORK
HOLE No:TP43Sh t 1 f 1
HOLE No:TP43Sh t 1 f 1
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CAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
Sheet 1 of 1Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.30
0.00
0.70
Dry to slightly moist, brown, loose to medium dense, fine to mediumgrained, silty SAND containing shale gravel. Colluvium.
Dark brown to yellowish brown, blotched green and yellow, highly tomoderately weathered, very closely to closely jointed, very soft to mediumhard rock strength, SHALE. Dwyka Formation
Scale
1:20
NOTES
1) Refusal of a TLB machine at 0.70m on weathered shale.
2) No groundwater seepage.
3) No sidewall collapse.
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORK
HOLE No:TP44Sheet 1 of 1
HOLE No:TP44Sheet 1 of 1
-
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CAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
Sheet 1 of 1Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
1.10
0.00
1.50
1.90
Slightly moist greyish brown, firm to stiff, silty CLAY, with top 0.2mcontaining numerous root materials. Colluvium.
Slightly moist, dark reddish brown, speckled dark greyish brown, stiff tovery stiff, gravelly silty CLAY. Gravel components comprising ferruginisednodules. Ferruginised Horizon.
Slightly moist, reddish brown, mottled and speckled dark greyish brownand orangey brown, very stiff, silty clayey GRAVEL. Gravel componentscomprising ferruginised nodules. Ferruginised Horizon.
Slightly moist to moist, dark reddish brown speckled dark greyish brown,stiff to very stiff, gravelly silty CLAY. Gravel components comprisingferruginised nodules. Ferruginised Horizon.
Scale
1:20
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORK
HOLE No:TP45Sheet 1 of 1
HOLE No:TP45Sheet 1 of 1
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CAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
Sheet 1 of 1Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.30
0.00
0.90
1.50
Sligthly moist, dark brown, firm, silty CLAY containing occasional shalegravel. Fill.
Slightly moist, greyish brown, firm, fissured, silty CLAY containingoccasional root materials. Colluvium.
Slightly moist, dark reddish brown, mottled and speckled dark greyishbrown and orangey yellowish brown, firm to stiff, gravelly silty CLAY.Gravel components comprising ferruginised nodules.
Slightly moist, dark reddish brown mottled and speckled orangey brown,stiff to very stiff, silty CLAY containing ferruginised nodules but less thanabove.
Scale
1:20
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORK
HOLE No:TP46Sheet 1 of 1
HOLE No:TP46Sheet 1 of 1
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CAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
Sheet 1 of 1Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.90
0.00
1.50
Dry to slightly moist, greyish brown, firm, sandy CLAY. Colluvium.
Slightly moist, dark brown mottled dark greyish brown, firm to stiffimproving with depth, gravelly silty CLAY. Gravel components comprisingferruginised nodules. Ferruginised Horizon.
Sligthly moist, yellowish brown to orangey brown, mottled and blotcheddark greyish brown, very stiff to hard, cemented, gravelly silty CLAY.Ferruginised Horizon.
Scale
1:20
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORK
HOLE No:TP47Sheet 1 of 1
HOLE No:TP47Sheet 1 of 1
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CAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
Sheet 1 of 1Sheet 1 of 1
JOB NUMBER:41151JOB NUMBER:41151
0.90
0.00
Slightly moist, dark greyish brown, firm to stiff, sandy silty CLAY.Colluvium.
Slightly moist, brown, mottled dark greyish brown, firm to stiff, improvingwith depth, gravelly silty CLAY. Gravel components comprisingferruginised nodules.
Scale
1:20
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORK
HOLE No:TP48Sheet 1 of 1
HOLE No:TP48Sheet 1 of 1
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AND WASTE WATER TREATMENT PLANTJOB NUMBER:41151JOB NUMBER:41151
1.00
0.00
1.50
Slightly moist, greyish brown, firm to stiff, sandy CLAY. Colluvium.
Slightly moist, dark brown, mottled and speckled light grey and darkgreyish brown, stiff, gravelly silty CLAY. Gravel components comprisingferruginised nodules.
Slightly moist, light grey and dark brown, mottled dark greyish brown andyellowish brown, dense to very dense, silty clayey GRAVEL. Gravelcomponents comprising ferruginised nodules. Ferruginised Horizon.
Scale
1:20
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORK
HOLE No:TP49Sheet 1 of 1
HOLE No:TP49Sheet 1 of 1
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AND WASTE WATER TREATMENT PLANTJOB NUMBER:41151JOB NUMBER:41151
0.50
0.00
1.10
1.80
Slightly moist, greyish brown, firm, gravelly silty CLAY. Fill.
Slightly moist, dark greyish brown, firm to stiff, silty CLAY. Colluvium.
Slightly moist, dark orangey reddish brown, firm to stiff, silty CLAYcontaining ferruginised nodules.
Slightly moist, yellowish grey, speckled light grey and dark greyish brown,stiff to very stiff, gravelly silty CLAY. Gravel components comprisingweathered shale. Residual Shale.
Scale
1:20
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORK
HOLE No:TP50Sheet 1 of 1
HOLE No:TP50Sheet 1 of 1
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AND WASTE WATER TREATMENT PLANTJOB NUMBER:41151JOB NUMBER:41151
0.70
0.00
1.40
Slightly moist, dark reddish brown, yellowish brown and dark greyishbrown, stiff to very stiff, gravelly silty CLAY. Gravel componentscomprising weathered shale. Fill.
Slightly moist, greyish brown, firm to stiff, sandy CLAY. Organic.
Colluvium.
Slightly moist, dark reddish brown, light grey and dark greyish brown ,stiff
to very stiff, gravelly silty CLAY. Gravel components comprisingweathered shale and ferruginised nodules.
Scale
1:20
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORK
HOLE No:TP51Sheet 1 of 1
HOLE No:TP51Sheet 1 of 1
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AND WASTE WATER TREATMENT PLANTJOB NUMBER:41151JOB NUMBER:41151
0.80
0.00Slightly moist, greyish brown, firm, sandy silty CLAY containing refuse. Fill.
Scale
1:20
NOTES
1) Final depth of a TLB machine at 0.8m, cable encounntered.
2) No groundwater seepage.
3) No sidewall collapse.
PREBEN NAIDOO & aSSOCIATESCAMPERDOWN SEWER AND RETICULATION NETWORKAND WASTE WATER TREATMENT PLANT
HOLE No:TP52Sheet 1 of 1
HOLE No:TP52Sheet 1 of 1
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AND WASTE WATER TREATMENT PLANTJOB NUMBER:41151JOB NUMBER:41151
0.60
0.00
1.10
1.60
Slightly moist, dark brown, mottled yellowish brown, firm, gravelly siltyCLAY. Gravel components comprising shale. Fill.
Slightly moist, greyish brown, firm, silty CLAY containing bottles and otherrefuse. Fill.
Slightly moist, greyish brown to brown, medium dense, medium grained,silty SAND containing occasional gravel. Fill.
Slightly moist, reddish brown, mottled and speckled dark greyish brownand yellow, stiff to very stiff, gravelly silty CLAY. Gravel componentscomprising ferruginised nodules. Ferruginised Horizon.
Scale
1:20
Ter r at es t Pr e b en N aid o o & A s s o c iat es
16 APPENDIX C DCP TEST RESULTS
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16. APPENDIX C: DCP TEST RESULTS
EASBP FROM DCP l
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EASBP FROM DCP, clayJob Name Camperdown Sewer Treatment Plant
File No: if needed Job No: 41151 Date of Test: 21-Jul-11
DCP No: 1 Location: Adjacent to TP1
note: EASBP= SuxNc/FOS Su from N via T3 of Geotermin ology
Penetration Guide
SPT N DCP
mm/blow DN consistency
< 5 132-210 Very Dense5 - 10 78-132 Dense
10 - 30 25-78 Med Dense
30 - 75 10 25 Loose
75 -100
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EASBP FROM DCP, clayJob Name Camperdown Sewer Treatment Plant
File No: if needed Job No: 41151 Date of Test: 21-Jul-11
DCP No: 2 Location: Adjacent to TP2
note: EASBP= SuxNc/FOS Su from N via T3 of Geotermin ology
Penetration Guide
SPT N DCP
mm/blow DN consistency
< 5 132-210 Very Dense5 - 10 78-132 Dense
10 - 30 25-78 Med Dense
30 - 75 10 25 Loose
75 -100
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EASBP FROM DCP, clayJob Name Camperdown Sewer Treatment Plant
File No: if needed Job No: 41151 Date of Test: 21-Jul-11
DCP No: 3 Location: Adjacent to TP3
note: EASBP= SuxNc/FOS Su from N via T3 of Geotermin ology
Penetration Guide
SPT N DCP
mm/blow DN consistency
< 5 132-210 Very Dense5 - 10 78-132 Dense
10 - 30 25-78 Med Dense
30 - 75 10 25 Loose
75 -100
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EASBP FROM DCP, clayJob Name Camperdown Sewer Treatment Plant
File No: if needed Job No: 41151 Date of Test: 21-Jul-11
DCP No: 4 Location: Adjacent to TP4note: EASBP= SuxNc/FOS Su from N via T3 of Geotermin ology
Penetration Guide
SPT N DCP
mm/blow DN consistency
< 5 132-210 Very Dense5 - 10 78-132 Dense
10 - 30 25-78 Med Dense
30 - 75 10 25 Loose
75 -100
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EASBP FROM DCP, clayJob Name Camperdown Sewer Treatment Plant
File No: if needed Job No: 41151 Date of Test: 21-Jul-11
DCP No: 5 Location: Adjacent to TP5note: EASBP= SuxNc/FOS Su from N via T3 of Geotermin ology
Penetration Guide
SPT N DCP
mm/blow DN consistency
< 5 132-210 Very Dense5 - 10 78-132 Dense
10 - 30 25-78 Med Dense
30 - 75 10 25 Loose
75 -100
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EASBP FROM DCP, clayJob Name Camperdown Sewer Treatment Plant
File No: if needed Job No: 41151 Date of Test: 21-Jul-11
DCP No: 6 Location: Adjacent to TP6note: EASBP= SuxNc/FOS Su from N via T3 of Geotermin ology
Penetration Guide
SPT N DCP
mm/blow DN consistency
< 5 132-210 Very Dense5 - 10 78-132 Dense
10 - 30 25-78 Med Dense
30 - 75 10 25 Loose
75 -100
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EASBP FROM DCP, clayJob Name Camperdown Sewer Treatment Plant
File No: if needed Job No: 41151 Date of Test: 21-Jul-11
DCP No: 7 Location: Adjacent to TP7note: EASBP= SuxNc/FOS Su from N via T3 of Geotermin ology
Penetration Guide
SPT N DCP
mm/blow DN consistency
< 5 132-210 Very Dense5 - 10 78-132 Dense
10 - 30 25-78 Med Dense
30 - 75 10 25 Loose
75 -100
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EASBP FROM DCP, clayJob Name Camperdown Sewer Treatment Plant
File No: if needed Job No: 41151 Date of Test: 21-Jul-11
DCP No: 8 Location: Adjacent to TP8note: EASBP= SuxNc/FOS Su from N via T3 of Geotermin ology
Penetration Guide
SPT N DCP
mm/blow DN consistency
< 5 132-210 Very Dense5 - 10 78-132 Dense
10 - 30 25-78 Med Dense
30 - 75 10 25 Loose
75 -100
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, yJob Name Camperdown Sewer Treatment Plant
File No: if needed Job No: 41151 Date of Test: 21-Jul-11
DCP No: 9 Location: Adjacent to TP9note: EASBP= SuxNc/FOS Su from N via T3 ofGeotermin ology
Penetration Guide
SPT N DCP
mm/blow DN consistency
< 5 132-210 Very Dense
5 - 10 78-132 Dense
10 - 30 25-78 Med Dense
30 - 75 10 25 Loose
75 -100
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, yJob Name Camperdown Sewer Treatment Plant
File No: if needed Job No: 41151 Date of Test: 21-Jul-11
DCP No: 10 Location: Adjacent to TP10note: EASBP= SuxNc/FOS Su from N via T3 of Geotermin ology
Penetration Guide
SPT N DCP
mm/blow DN consistency
< 5 132-210 Very Dense5 - 10 78-132 Dense
10 - 30 25-78 Med Dense
30 - 75 10 25 Loose
75 -100
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yJob Name Camperdown Sewer Treatment Plant
File No: if needed Job No: 41151 Date of Test: 21-Jul-11
DCP No: 11 Location: Adjacent to TP11note: EASBP= SuxNc/FOS Su from N via T3 of Geotermin ology
Penetration Guide
SPT N DCP
mm/blow DN consistency
< 5 132-210 Very Dense5 - 10 78-132 Dense
10 - 30 25-78 Med Dense
30 - 75 10 25 Loose
75 -100
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Job Name Camperdown Sewer Treatment Plant
File No: if needed Job No: 41151 Date of Test: 21-Jul-11
DCP No: 12 Location: Adjacent to TP12note: EASBP= SuxNc/FOS Su from N via T3 ofGeotermin ology
Penetration Guide
SPT N DCP
mm/blow DN consistency
< 5 132-210 Very Dense
5 - 10 78-132 Dense
10 - 30 25-78 Med Dense
30 - 75 10 25 Loose
75 -100
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Job Name Camperdown Sewer Treatment Plant
File No: if needed Job No: 41151 Date of Test: 21-Jul-11
DCP No: 13 Location: Adjacent to TP13note: EASBP= SuxNc/FOS Su from N via T3 of Geotermin ology
Penetration Guide
SPT N DCP
mm/blow DN consistency
< 5 132-210 Very Dense5 - 10 78-132 Dense
10 - 30 25-78 Med Dense
30 - 75 10 25 Loose
75 -100
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Job Name Camperdown Sewer Treatment Plant
File No: if needed Job No: 41151 Date of Test: 21-Jul-11
DCP No: 14 Location: Adjacent to TP14note: EASBP= SuxNc/FOS Su from N via T3 of Geotermin ology
Penetration Guide
SPT N DCP
mm/blow DN consistency
< 5 132-210 Very Dense5 - 10 78-132 Dense
10 - 30 25-78 Med Dense
30 - 75 10 25 Loose
75 -100
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Job Name Camperdown Sewer Treatment Plant
File No: if needed Job No: 41151 Date of Test: 21-Jul-11
DCP No: 15 Location: Adjacent to TP15note: EASBP= SuxNc/FOS Su from N via T3 of Geotermin ology
Penetration Guide
SPT N DCP
mm/blow DN consistency
< 5 132-210 Very Dense5 - 10 78-132 Dense
10 - 30 25-78 Med Dense
30 - 75 10 25 Loose
75 -100
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Job Name Camperdown Sewer Treatment Plant
File No: if needed Job No: 41151 Date of Test: 21-Jul-11
DCP No: 16 Location: Adjacent to TP16note: EASBP= SuxNc/FOS Su from N via T3 of Geotermin ology
Penetration Guide
SPT N DCP
mm/blow DN consistency
< 5 132-210 Very Dense5 - 10 78-132 Dense
10 - 30 25-78 Med Dense
30 - 75 10 25 Loose
75 -100
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Ter r at es t Pr e b en N aid o o & A s s o c iat es
18. APPENDIX E: GEOLOGICAL LONG SECTIONS
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Scale: Hor. 1:7500
V 1 100
Trial Pit No. :
1
2
(m)
CAMPERDOWN BULK SEWER RETICULATION NETWORK
GEOLOGICAL LONGITUDINAL SECTION
30 32' 24.61"TP 17 TP 18 TP 19 TP 20
GPS Co-Ord (E)
GPS Co-Ord (S) 29 44' 10.04"
30 32' 26.03"
29 44' 01.77"
30 32' 25.26"
29 43' 51.27"
29 43' 57.56"
30 32' 10.14"
1.6
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Ver. 1:100
Comments
Bedding
Topography
3
Legend
Samples
Profile
Soft Excavation
Intermediate Excavation
Hard Excavation
>40% Boulders
0.5
Drytoslightlymoist,greyishbrown,
firmtostiff,fissured,silty
CLAY.
Colluvium.
1.2S
lightlymoist,browntogreyishbrown,
mottleddarkgreyish
brown,
firmtostiff,
siltyCLAY.
ResidualShale.
1.6Y
ellowishbrown,
staineddarkgreyishbrown,
highlyweath
ered,
v
erycloselytocloselyjointed,
verysofttosoftrockstreng
th
improvingwithdepth-
SHALE.
DwykaFormation
0.6
Drytoslightlymoist,greyishbrown,
firmtostiff,fissured,silty
CLAY.
Colluvium.
1.2
Slightlymoist,browntogreyishbrown,m
ottleddarkgreyis
h
brown,
firmtostiff,
siltyCLAY.
ResidualShale.
2.1Y
ellowishbrown,
staineddarkgreyishbrown,
highly
weathered,
verycloselytocloselyjointed,v
erysofttosoft
rockstrengthimprovingwithdepth,
SHALE.
DwykaForm
ation
0.1
Drytoslightlymoist,greyishbrown,
firmtostiff,
fissured,
silty
CLAY.
Colluvium.
1.7
Slightlymoist,browntogreyishbrown,
mottleddarkgreyish
brown,
firmtostiff,
siltyCLAY.
ResidualShale.
2.5
Slightlymoist,yellowishbrown,
staineddarkreddishbrow
n,
stiffclayeySILT.
CompletelyWeatheredShale.
0.1
Slightlymoist,yellowishgrey,
loose,
siltyclayeyGRAVEL.
Gravelcomponentscomprisingshale.
Fill.
0.2
Moistbrown,
veryloose,
coarsetoverycoarsegrained,
verymicaceous,SAND.
Fill.
1.4
Slightlymoist,yellowishbrown,
brown,
darkgreyish
brownanddarkbrown,
stifftoverystiff,
gravellysilty
CLAYcontainingrefuse.
Gravelcomponentscomprising
weatheredshale.
Fill.
2.0
Slightlymoist,orangeypinkishbrown,
streakedandmottled
darkgreyishbrown,
stifftoverystiff,siltyCLAY.
CompletelyWeatheredSandstone.
---0,7 - 1,5 Indicator
Sampled between--- ---
Very Gently Sloping Very Gently Sloping Very Gently Sloping Flat
Main Fill Only Main Fill Only Main Fill Only Main Fill Only
--- ---Ground Water
Seepage @ 2,0m---
Page 1 of 8
TP
17
TP
18
TP
19
TP
20
Scale: Hor. 1:7500
Ver 1 100
Trial Pit No. :
1
2
(m)
CAMPERDOWN BULK SEWER RETICULATION NETWORK
GEOLOGICAL LONGITUDINAL SECTION
30 32' 10.14"TP 21 TP 22 TP 23
GPS Co-Ord (E)
GPS Co-Ord (S) 29 43' 57.56"
30 32' 03.11"
29 43' 55.29"
30 32' 25.79"
29 43' 47.86"
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Ver. 1:100
Comments
Bedding
Topography
3
Legend
Samples
Profile
Soft Excavation
Intermediate Excavation
Hard Excavation
>40% Boulders
---0,5 - 1,2 Indicator
Sampled between--- ---
Flat Flat Flat
Main Fill Only Main Fill Only Main Fill Only
--- --- ---
0.7
Drytoslightlymoist,lightbrownandgreyish
brown,
loosetomediumdense,
mediumgrained,
SANDcontainingnumerousshalegravel.Fill.
2.0
Slightlymoist,darkreddishbrown,
mottled
orangeybrown,
firmtostiff,
siltyCLAY.
2.6
Slightlymoist,orangeypinkishbrown,
streaked
andmottleddarkgreyishbrown,
stiffToverystiff,
siltyCLAY.
CompletelyWeatheredSandstone.
0.8
Drytoslightlymoist,darkreddishbrown,
brown
anddarkgreyishbrown,
firmtostiff,
gravellysilty
CLAY.
Fill.
1.4
Slightlymoist,greyishbrown,
firmtostiff,
fissured,
siltyCLAY.
Colluvium.
2.0
Slightlymoist,darkreddishbrown,
mottleddark
greyishbrownandpinkishorange,
stiff,
siltyCLAY
containingferuginisednodules.
FerruginisedHorizon.
2.4
Slightlymoist,orangeypinkishbrown,
streakedand
mottleddarkgreyishbrown,
stifftoverystiff,
silty
CLAY.
CompletelyWeatheredsandstone.
0.5
Drytoslightlymoist,darkreddishbrown,
brown
anddarkgreyishbrown,
firmtostiff,
gravellysilty
CLAY.
Fill.
2.6
Slightlymoist,darkbrownbecomingorangeybrown
withdepth,
mottledandspeckleddarkgreyishbrown,
stiff,
siltyCLAY.
ResidualShale.
Page 2 of 8
TP
21
TP
22
TP
23
Scale: Hor. 1:7500
Ver 1:100
Trial Pit No. :
1
2
(m)
CAMPERDOWN BULK SEWER RETICULATION NETWORKGEOLOGICAL LONGITUDINAL SECTION
30 32' 39.72"TP 24
GPS Co-Ord (E)
GPS Co-Ord (S) 29 43' 48.36"
30 32' 38.62"
29 43' 43.26"
30 32' 19.57"
29 43' 37.28"
TP 25 TP 26 TP 27 TP 28 TP 29
30 32' 31.60"
29 43' 47.29"
30 32' 54.90"
29 43' 44.17"
30 32' 27.97"
29 43' 41.77"
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Ver. 1:100
Comments
Bedding
Topography
3
Legend
Samples
Profile
Soft Excavation
Intermediate Excavation
Hard Excavation
>40% Boulders
---1,6 - 1,8 Indicator
Sampled between---
Flat Flat Flat
Main Fill Only Main Fill Only Main Fill Only
--- --- ---
1.1Slightlymoist,g
reyishbrown,f
irmtostiff,s
iltyCLAYwithtop
0.2
m
containingrootmaterials.C
olluvium.
2.8Slightlymoisttomoistdarkbrownandreddishbrown,
mottledgreyishbrown,firmtostiff,s
iltyCLAYcontaining
ferruginisednodules.
FerruginisedHorizon.
0.3
Slightlymoist,greyishbrown,
firm,
siltysandyCLAY
containingnumerousgravel.Fill.
1.0
Slightlymoist,lightgrey,
mottledyellow,
looseto
mediumdense,
mediumtocoarsegrained,
slightly
micaceous,
siltyclayeySAND.
Fill
1.6
Slightlymoist,greyishbrowntobrown,
firm,
sandy
CLAY.
Colluvium
2.7
Slightlymoisttomoist,darkbrownandreddishbrown,
mottledgreyishbrown,
firmtostiff,siltyCLAY
containingferruginisednoduleswhichdecreaseswith
increaseindepth.
FerruginisedHorizon.
---
TP
24
TP
25
1.1Drytoslightlymoist,b
rown,l
oosetomediumdensemedium
grained,gravellySANDcontainingalayerofgravelbetween
1.0and1.1m.F
ill.
2.0
Slightlymoisttomoist,d
arkbrownandreddishbrown,mottled
greyishbrown,firmtostiff,s
iltyCLAYcontainingferruginised
nodules.F
erruginisedHorizon.
TP
26
0.6
Slightlymoist,g
reyishbrown,f
irmtostiff,s
iltyCLAY.C
olluvium.
1.6
Slightlymoist,orangeyreddishbrown,mottledblackandyellow,
densetoverydense,siltyclayeyGRAVEL.Gravelcomponents
comprisingferruginisednodules.FerruginisedHorizon.
1.8
Slightlymoist,yellowishbrown,mottleddarkgreyishbrown,stiff,
gravellyclayeySILT.G
ravelcomponentscomprisingweathered
shale.R
esidualShale.
2.6Yellowishbrown,s
taineddarkgreyishbrownandreddishbrown,
highlyweatheredwithcompletelyweatheredzones,veryclosely
tocloselyjointed(recoveredasgravel),verysofttosoftrock
strengthimprovingwithdepth,SHALE.
TP
27
0.6Drytoslightlymoist,g
reyishbrown,firmtostiff,f
issured,silty
CLAY.C
olluvium
1.6Slightlymoist,r
eddishbrownmottledandspeckledyellow,
firmtostiff,s
iltyCLAY.
2.9Slightlymoist,lightorangeyreddishbrownmottledandspeckled
yellowishbrown,f
irmtostiff,S
ILT.C
ompletelyWeathered
S
andstone
TP
28
0.6
Drytoslightlymoist,g
reyishbrown,mediumdense,medium
grained,s
iltySANDcontaininggravel.F
ill
1.5Slightlymoist,orangeybrownmottledandspeckleddarkgreyish
brown,f
irmtostiff,g
ravellysiltyCLAY.G
ravelcomponents
comprisingweatheredshale.ResidualShale.
2.9
Orangeybrown,s
tainedandstreakeddarkgreyishbrown,
highlytocompletelyweathered(butmostlycompletely
weathered),v
erysofttosoftrockstrength,S
HALE.D
wyka
Formation.
TP
29
0,5 - 1,2 Indicator
Sampled between
1,6 - 2,0 Indicator
Sampled between
Flat Flat Flat
@ 2,0m
Groundwater Seepage
Main Fill Only Main Fill Only Main Fill Only
--- ---
Page 3 of 8
Scale: Hor. 1:7500
Ver. 1:100
Trial Pit No. :
1
2
3
(m)
CAMPERDOWN BULK SEWER RETICULATION NETWORKGEOLOGICAL LONGITUDINAL SECTION
30 32' 14.75"TP 30
GPS Co-Ord (E)
GPS Co-Ord (S) 29 43' 31.95"
30 32' 05.45"
29 43' 43.83"
TP 31 TP 32
30 32' 18.76"
29 43' 35.89"
30 32' 09.38"
29 43' 34.62"
30 31' 55.10"
29 43' 42.23"
TP 33 TP 34
-
8/22/2019 Sewer Geotechnical Report
108/112
Comments
Bedding
Topography
3
Legend
Samples
Profile
Soft Excavation
Intermediate Excavation
Hard Excavation
>40% Boulders
Flat Flat
Main Fill Only Main Fill Only
TP
30
TP
31
TP
32
TP
33
TP
34
0,5 - 2,0m Indicator
Sampled between
Flat Flat Flat
Main Fill Only Main Fill Only Main Fill Only
0.6
Slightlymoist
,greyishbrown
,firmtostiff
,gravellysiltyCLAY
.Colluv
ium
.
1.2
Slightlymoist
,yellowishorangeybrown,mottledyellowishbrownan
d
lightgrey,mediumdensesiltyclayeyGRAVEL.Gravelcomponents
comprisingshale.ResidualShale
.
1.5
Slightlymoist
,reddishbrowntodarkorangeybrown,mottledand
speckledyellowishbrown
,firmtostiff
,gravellysiltyCLAY
.Gravel
componentscomprisingweatheredshaleandferruginisednodules.
ResidualShale
.
2.2
Slightlymoist
,darkorangeyyellowishbrown,firmtostiff
,gravellyclayey
SILT
.Gravelcomponentscomprisingshale.CompletelyWeathere
d
Shale
.
2.8
Darkyellowishorangeybrown
,highlytocompletelyweathered
,very
closelytocloselyjointed
,verysofttosoftrockstrengthimprovingw
ith
depth,SHALE
.DwykaFormation
0.2
Slightlymoist,darkbrownmottledyellowishbrown
,firm
,silty
CLAY
.Fill
1.0
Slightlymoist,greyishbrown
,mediumdense
,medium
grained
,clayeySAND
.Colluvium
.
2.7
Slightlymost,darkbrownanddarkreddishbrown
,mottled
darkgreyishbrown
,densetoverydense
,clayeyGRAVEL
.
Gravelcomponentscomprisingferruginisednodules.
FeruginisedHorizon
.
0.5
Drytoslightlymois,tgreyishbrowntobrown,firm
,siltyCLAYconta
ining
shalegravel.Colluvium
.
0.7
Slightlymoist,greyishbrown
,mediumdensetodense,siltyclayey
GRAVEL
.Gravelcomponentscomprisingferruginisenodules.
Ferruginised.Horizon
1.4
Slightlymoist
,browntodarkbrown
,mottledyellowishbrown,stiffto
very
stiff
,gravellysiltyCLAY
.Gravelcomponentscomprisingferruginised
nodules.
2.6
Yellowishbrown,staineddarkgreyishbrown,highlytocompletely
weathered
,verycloselytocloselyjointed,verysofttosoftrock
strengthimprovingwithdepth,SHALE
.DwykaFormation.
0.5
Slightlymoist,greyishbrown,mediumdense,siltySANDcontainin
g
ferruginisednodules.Colluvium
.
1.1
Slightlymoist,yellowishbrownandgreyishbrown,firmtostiff
,grav
elly
CLAY
.Gravelcomponentscomprisingweatheredshale.Residua
lShale
.
1.8
Yellowishbrown,staineddarkgreyishbrownanddarkbrown,highlyto
completelyweathered,verycloselytocloselyjointed,verysofttosoft
rockstrength
,SHALE
.DwykaFormation.
2.2
Darkbrownandyellowishbrown,highlyweathered
,verycloselyto
closelyjointed
,verysofttosoftrockstrengthimprovingwithdepth
,
SHALE
.
0.5
Drytoslightlymoist,greyishbrown,firm
,fissured,siltyCLAYconta
ining
occasionalshalegravel
.Colluvium
.
1.8
Darkbrown
,stainedorangeybrownanddarkgreyishbrown,highlyto
moderatelyweathered,verycloselytocloselyjointed,verysofttos
oftrock
strengthimprovingwithdepth,SHALE
.DwykaFormation
0,2 - 1,0m Indicator
Sampled between
Page 4 of 8
Scale: Hor. 1:7500
V 1 100
Trial Pit No. :
1
2
(m)
CAMPERDOWN BULK SEWER RETICULATION NETWORK
GEOLOGICAL LONGITUDINAL SECTION
30 31' 52.65"TP 35
GPS Co-Ord (E)
GPS Co-Ord (S) 29 43' 31.51"
30 31 47.06"
29 43' 37.51"
TP 36 TP 37
30 31' 57.23"
29 43' 30.02"
30 31' 53.84"
29 43' 35.78
TP 38
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8/22/2019 Sewer Geotechnical Report
109/112
Ver. 1:100
Comments
Bedding
Topography
3
Legend
Samples
Profile
Soft Excavation
Intermediate Excavation
Hard Excavation
>40% Boulders
Flat Flat
Main Fill Only Main Fill Only
TP
35
TP
36
TP
37
TP
38
0,5 - 2,0m Indicator
Sampled between
Flat Flat
Main Fill Only Main Fill Only
0,2 - 1,0m Indicator
Sampled between
0.2Drybrown,m
ediumdense,g
ravellysiltySAND.F
ill.
0.6Slightlymoist,g
reyishbrown,f
irm,f
issured,siltyCLAY.C
olluvium.
1.9
Slightlymoist,d
arkreddishbrown,m
ottledandspeckleddarkgreyish
br
ownandyellowishbrown,stifftoverystiff,g
ravellysiltyCLAY.G
ravel
co
mponentscomprisingferruginisednodules.F
erruginisedHorizon.
2.7Slightlymoist,l
ightbrown,m
ottledandspeckleddarkgreyishbrown
an
dyellowishbrown,s
tifftoverystiff,g
ravellysiltyCLAY.G
ravel
co
mponentscompris
0.4
D
ry,
orangeyyellowishbrownandlightgrey,firmtostiff,
g
ravellysiltyCLAY.
Gravelcomponentscomprising40%
s
hale.
Fill.
1.0
P
urplishbrownanddarkbrown,
mottledandspeckledlight
g
rey,
highlytomoderatelyweathered,
verycloselytoclose
ly
jointed,s
ofttomediumhardrockstrength,
Quartz
S
andstone.
DwykaFormation.
0.7S
lightlymoist,darkgreyishbrown,
firm,
fissured,
siltyCLA
Y
c
ontainingrootmaterials.
Colluvium.
1.7
S
lightlymoist,darkreddishbrown,
mottledandspeckled
y
ellowishbrownanddarkgreyishbrown,
stifftoverystiff,
s
iltyCLAYcontainingferruginisednodules.
ResidualSand
-
s
tone.
2.6S
lightlymoistdarkorangeybrown,
mottledyellowishbrow
n,
s
tifftoverystiff,
clayeySILT.
CompletelyWeathered
S
andstone.
0.7
Slightlymoist,greyishbrown,
firm,
siltyCLAY.
Colluvium.
1.4S
lightlymoist,darkbrown,
mottledreddishbrownand
yellowishbrown,
firmtostiff,siltyCLAY.
ResidualShale.
2.9
Slightlymoist,orangeyyellowishbrown,
mottledlightgrey
anddarkgreyishbrown,
stifftoverystiff,clayeySILT
containingweatheredshalegravel.Residualshaleto
CompletelyWeatheredShale.
Page 5 of 8
Scale: Hor. 1:7500
Ver 1:100
Trial Pit No. :
1
2
(m)
CAMPERDOWN BULK SEWER RETICULATION NETWORK
GEOLOGICAL LONGITUDINAL SECTION
30 31' 52.65"TP 39
GPS Co-Ord (E)
GPS Co-Ord (S) 29 43' 42.17"
TP 41 TP 43
30 31' 45.49"
29 43' 39.39"
30 31' 30.65"
29 43' 44.59"
TP 40 TP 42
30 31' 32.25"
29 43' 3537"
30 31' 35.35"
29 43' 41.70"
-
8/22/2019 Sewer Geotechnical Report
110/112
Ver. 1:100
Comments
Bedding
Topography
3
Legend
Samples
Profile
Soft Excavation
Intermediate Excavation
Hard Excavation
>40% Boulders
Flat
Main Fill Only
TP
39
TP4
0
TP
41
TP
42
Flat Flat
Main Fill Only Main Fill Only
--- --- --- --- ---
0.15
Drygreyishbrown,
mottledyellowishbrown,
firm,
siltyCLAY.
Fill.
1.2
Slightlymoist,greyishbrown,
firmtostiff,siltyCLAY.
Colluvium.
2.6
Slightlymoist,darkreddishbrown,s
tifftoverystiff,gravelly
siltyCLAY.
Gravelcomponentscomprisingferruginised
nodules.
0.1
Drygreyishbrowntobrown,
loose,
mediumgrained,
SAN
D.
Fill.
0.6
Slightlymoist,darkgreyishbrown,
firmtostiff,fissured,s
ilty
SANDcontainingrootmaterials.
Colluvium.
1.4
Slightlymoist,darkbrowntoreddishbrownanddarkgreyish
brown,
mottledyellowishbrown,
firmtostiff,gravellysilty
CLAY.
Gravelcomponentscomprisingferruginisednodules.
FerruginisedHorizon.
2.8
Slightlymoist,darkorangeybrown,
stifftoverystff,
silty
C
LAY.
ResidualsandstonetoCompletelyWeathered
S
andstone.
0.3
Dry,
greyishbrown,
mediumdensetodense,
finetomedium
grained,
gravellySAND.
Fill.
0.7
Slightlymoist,darkreddishbrown,
mottledandspeckleddark
greyishbrownandorangeybrown,
firmtostiff,gravellysilty
CLAY.
Gravelcomponentscomp