A C A C T 37 T G T G A th Annual Mid-Atlantic T G A C T C ...
Proposed Drainage Layout e m a xisting r y t c a t i o n c ...
Transcript of Proposed Drainage Layout e m a xisting r y t c a t i o n c ...
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LCT
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RWP
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1085
WT
S.xE
100Ø @ 1:80
100Ø @ 1:80
100Ø @ 1:80
100Ø @ 1:50
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100Ø @ 1:6100Ø @ 1:4
Proposed Surface Water Drainage
Proposed Foul Drainage
Exis�ng Surface Water Drainage
Exis�ng Foul Drainage
Proposed Inspec�on Chamber
Proposed Manhole
Exis�ng Manhole
Rainwater Pipe
RWP
Key
Mass concrete
founda�onD
DD-150
When D is 1000 or m
ore, concrete fill tow
ithin D-150 of level of founda�onbo�
om
When D is less than 1000, concrete
fill to level of founda�on bo�om
Mass concrete
founda�on
Selected backfill material
Granular bedding m
aterial
Surface reinstatement as per soft or
hard landscaping specification
150m
in
150
Concrete bedand surround
Varies - refer tom
anhole schedule
150m
in
150
Type A granular bedand surround
Varies - refer tom
anhole schedule
Concrete bedding m
aterial
Class S granular bed and surround -pipe cover depth >900m
mClass Z concrete bed and surround -
pipe cover depth >900mm
Plas�c chamber and rings shall com
ply with Clause E2.31.
Min. 150m
m th'k GEN
3 insituconcrete surround com
plyingw
ith E4.1 and BRE SpecialDigest 1 in accordance w
ithm
anufacturer's instruc�on.
Temporarily cap sha� during
construc�on.
Precast concrete slab or insitu concreteslab to support cover and fram
e.M
inimum
50mm
gap between slab and
chamber unit.
Mortar bedding and haunching to
cover and frame to Clause E6.7.
Class B engineering brickwork or
precast concrete cover frame
sea�ng rings.
Flexible seal (seal needs to bew
ater�ght).
Cover complying w
ith Clause E2.32.If distance from
cover level to soffit
of pipe is >1m, access opening shall
be restricted to 350mm
diameter or
300x300mm
.
450mm
Joints between base and sha�
between sha� com
ponents tobe fi�
ed with w
ater�ght seals.
Base unit to have all connec�ons with
soffit levels set no low
er than that ofthe m
ain pipe.Invert of connec�ng pipe at least50m
m above that of the m
ain pipe.
Min. 150m
m concrete bedding.
Rocker pipe to Clause E6.6.2.Joint to be as close as possibleto face of cham
ber to permit
sa�sfactory joint andsubsequent m
ovement.
10
Compressible filler
Indica�ve concretefounda�on
New
drain sleeved throughfounda�on w
rapped with 50
compressible m
aterial and taped andboxed out in plyw
ood.
RWP adapter
Rainwater pipe
Refer to external works for
construc�on thicknesses
Rainwater pipe
For alterna�ve rodding gullyarrangem
ent see detail
Type 2 cover frame sea�ng rings
with 600x600 central access hole.
Type 1 cover frame sea�ng ring
with 600x600 eccentric access hole
(BS EN 752-3) bedded on m
ortar.
600
Duc�le iron cover and frame
to BS EN 124 D400, bedded on
class M1, M
2 or epoxy mortar.
600 max.
Cover slab with 750x600 access
(BS EN 752-3) bedded on m
ortar.10m
m uncom
pressed thicknessof approved sealant to allhorizontal joints.
100 min.
75
150mm
thick grade GEN3
sulphate resis�ngconcrete surround.Precast concrete cham
bersec�ons.Li�ing eyes to be pointed.Precast concrete cham
bersec�ons set 75m
m into
base slab.
225 min.
Invert with cham
ber to beform
ed using channel pipe.
Class M1, M
2, or epoxy mortar
haunching to mh cover and fram
e.
Grano concrete benching(m
in 20mm
thick) to be broughtup to a dense sm
ooth face neatlyshaped and finished toall branch connec�ons.Benching slope to be betw
een1 in 10 and 1 in 30.
Grade GEN3 concrete
(sulphate resistant).
diameter as
specified
Playing Field PavilionEast M
arkham
East Markham
Parish Council
As Shown
Construc�on1083-001 B
Proposed Drainage
RevisionDetails
Date
Project
Client
Title
Date
Num
ber
Scale
Status
269 Lincoln RoadN
orth Hykeham, Lincoln, LN
6 8NH
Tel : 07753 168226W
eb: ww
w.nc29.co.uk
Email : info@
nc29.co.uk
Drawn
Checked
January 2021
CCCC
AAddi�on of dem
arca�on chambers
19/02/2021
Copyright © 2021 N
C29 Ltd
N
Proposed Drainage LayoutScale 1:100
Surface Water M
anhole ScheduleFoul W
ater Manhole Schedule
Notes
1.Do note scale this draw
ing.2.
This drawing is to be read in conjunc�on w
ith all other project drawings
and specifica�ons.3.
All dimensions are in m
illimetres unless stated otherw
ise.4.
Should there be any conflict between the details indicated on this
drawing and those indicated on other draw
ings the Project Engineer shallbe inform
ed prior to construc�on.5.
Un�l technical approval has been obtained from
the relevant authority, itshould be understood that all draw
ings issued are preliminary and not for
construc�on. Should the contractor comm
ence site work prior to such
approval being given, it is en�rely at their own risk.
6.All 100Ø
proposed drainage pipes shown are to be laid at a m
inimum
gradient of 1:80.7.
All 150Ø proposed drainage pipes show
n are to be laid at a minim
umgradient of 1:150.
8.All exis�ng land drains encountered on site during construc�on are to bere-connected.
9.Tem
porary protec�on to be provided to drainage work during
construc�on as necessary.10.
Topographical survey and architectural layout based on third partyinform
a�on.11.
An�cipated foul flow rates calculated using discharge unit m
ethod to BSEN
12056-2.12.
Drawing to be read in conjunc�on w
ith Causeway Flow
design pack.13.
Pipes to be structured walled to BS EN
13476, Polypropylene to BE EN1852 or PVC-U
to BS EN 1401.
14.Both clay and concrete pipes shall be strength class 120 (100/150m
m m
incrushing strength 28kN
/m). Therm
oplas�c pipes shall have a minim
umring s�ffness of SN
415.
Pipes which run adjacent to buildings shall be installed in strict
accordance with Building Regula�ons Part H, clauses 2.23 to 2.25
16.Class Z concrete bed and surround to all foul and surface w
ater pipesw
ith less than 900mm
cover depth. Type S granular bed and surround toall foul and surface w
ater pipes with greater than 900m
m cover depth.
17.All m
anholes and inspec�on chambers subject to vehicular traffi
cking tohave D400 load-rated covers and fram
es to BS EN 124. All m
anholes andinspec�on cham
bers not subject vehicular trafficking to have B125
load-rated covers and frames to BS EN
124.18.
Concrete to be GEN1 unless specified otherw
ise.19.
The first flexible joint in pipes adjoining a manhole shall be a m
aximum
length of 600mm
from the inside face of the m
anhole, connec�ng to arocker pipe. The length of the rocker pipe shall be 600m
m.
20.All foul and surface w
ater pipes to be constructed to Building Regula�onsPart H.
CDM Requirem
entsRisk - Deep excava�onControl m
ethod - Contractor to design trench support to depths shown in the
manhole schedule, appropriate to the ground condi�ons.
Risk - Water ingress into excava�ons, including ground w
aterControl m
ethod - Contractor to specify method of dealing w
ith ingress ofw
ater into excava�ons, in par�cular if ground water is experienced.
Contractor to undertake trench inspec�ons prior to entry into any excava�on,and again if le� overnight or if condi�ons change.Risk - U
nderground servicesControl m
ethod - Contractor to trace underground u�li�es using CAT, Gennyand trial holes.
Typical Pipe Bedding DetailsScale 1:50
Typical Rainwater Pipe Detail
Scale 1:20
Typical Inspection Chamber Detail
Type D - Design and Construction Guidance 2020
Maxim
um Depth 2m
Scale 1:20
Typical Flexible Joint to ConcreteBed and Surround Detail
Scale 1:20
Drain Sleeved Through Foundation DetailScale 1:20
Pipe Protection Near Foundation Detail
Scale 1:20
Typical Manhole Detail
Scale 1:50
BConstruc�on issue
10/03/2021
This section only as part of m
ain building contract, connecting to existing inspection cham
bers by others.
Field Practice Markup
21/03/21 JW