R-12-090_Pressure Meter Test Report

7/31/2019 R-12-090_Pressure Meter Test Report

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PRESSURE METER TEST REPORT

(R-012-090)

PROPOSED

KING ABDULLAH FOUNDATION PROJECT,

RIYADH,

KINGDOM OF SAUDI ARABIA.


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PRESSUREMETER TEST REPORT

KING ABDULLAH FOUNDATION PROJECT, RIYADH,


TABLE OF CONTENTS PAGE

1. INTRODUCTION 22. PURPOSE AND SCOPE OF WORK 23. PRESSURE-METER CALIBRATION 24. TEST PROCEDURE 35. ANALYSIS WITH MEASUREMENT RESULTS 36. SUMMARY AND CONCLUSIONS 3

APPENDIX A

1.FIGURE 01 : PG CORRECTED STRAIGHT LINE2.STRESS DEFORMATION CURVES3.TABLE 01 : SUMMARY OF PRESSUREMETER TEST RESULTS


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INTRODUCTION

This report presents the results of the Pressuremeter Tests carried out by AL JAZZAR

(Omar Jazzar Consulting Engineers), Geotechnical & Materials Engineers, for the King

Abdullah Foundation Project, Riyadh, Kingdom of Saudi Arabia. The work was

authorized byM/s. Saudi Binladin Group,Kingdom of Saudi Arabia.

The Pressuremeter tests were conducted at site from 11th

& 15th

April, 2012 in presence of

client engineer. Total of Twenty One (21) tests were conducted in three boreholes viz., BH#5,

BH#6 & BH#9 at various depth of boreholes where in rock parameters were supposed to be

determined and the results are presented in this report.

This report describes the field work done on the site, analysis of measurement and results

obtained from the measurement from site.

PURPOSE & SCOPE OF WORK

The purpose of conducting Pressuremeter test is to evaluate the engineering properties of sub-

surface rock like the ground co-efficient, elastic modulus and shear modulus for the use in the

design of foundation and substructures

PRESSURE METER CALIBRATION

The Elastmeter function to let the pressure exerted on the Borehole wall via rubber tube.

Because of its elasticity retained, rubber indicates the variation with its thickness influenced


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Figure - 01 shown Appendix A represents the relation between Pressure "P" and the

thickness variation volume (PG Corrected straight line) where the line slope (Inclination

Factor) is K = 69

TEST PROCEDURE

1. Drilling of borehole: The drilling of borehole must be accomplished as smooth aspossible to have less disturbance of the borehole wall.

2. Eliminate air bubbles in the high pressure tube3. Lowering the probe into borehole and subsequent measurement.4. Pressurizing and measuring5. Pressurizing the probe with increment. (Step loading).6. Measure the pressure and the displacement values with applying equal pressure

gradually.

7. The loading increments shall be about 0.5 MPa.8. Proceed to next step after the reading promptly.9. The test should be terminated when reaching the limit of its maximum.10.Release the pressure to deflate packer, then retrieve the probe from the borehole or

shift the probe to another test depth.

11.The diameter of borehole should be close to the same diameter of probe.12.The interval of measuring depth is 5.0 m.

ANALYSIS AND CONCLUSIONS

The indicator of the Elastmeter system get two raw reads, Pressure applied and Radius of the


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SUMMARY AND CONCLUSIONS

The result of a pressure-meter testing has been conducted at the proposed King Abdullah

Foundation Project, Riyadh, Kingdom of Saudi Arabia.

Table 01of Appendix - A shows the results of the pressuremeter test with Ground Co-

efficient (K), Modulus of Elasticity (E) & Shear Modulus, (G) for the different boreholes at

various depths.

The wide range obtained for the pressuremeter modulus might be attributed to the nature of

the rock mass at the site. Values of modulus might be affected by the existence of

discontinuities, anomalies and size of cavities at or near the test locations. It might be of

interested to note that the highest modulus value (50,017 MPa) obtained at a depth of

(33.00m) of borehole # 6 where as the lowest modulus value (1017 MPa) obtained at a depth

of (10.00m) of borehole # 9

Yours very truly,

FOR OMAR JAZZAR CONSULTING ENGINEERS

(Geotechnical & Materials Engineers)

S. Joseph Ravi, M.E; MIGS;DBM;,

Branch Manager


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$33(1',;$


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Table 01 : Summary of Pressuremeter Test Results

BH

#

Depth

(m)

GroundCoefficient,

K=P/R,

MPa

Modulus ofElasticity,

E=(1+).r.K

MPa

ShearModulus,

G=E/2(1+)

MPa

5

17 93 9253* 3559

22 105 10540 4054

27 143 14323 5509

32 500 49479 1903037 500 49946 19210

6

8 429 43691 16804

13 105 10924 4202

18 429 43352 16674

23 167 16959 6523

33 500 50017 19237

38 43 4358* 1676

43 500 49896 19191

9

10 10 1017* 391

15 204 20482 7878

20 263 26355 10137

25 143 14307 5503

30 400 39947 15364

35 172 17187 6610

40 114 11263 4332

44.5 500 49892 19189

N t


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Figure - 01 : PG Corrected Straight Line K = 69

0.0

5.0

10.0

15.0

20.0

25.0

0 0.05 0.1 0.15 0.2 0.25 0.3

Pressure'P'(MPa)

Thickness Variation Volume (mm)


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76.868, 3.0

76.873, 3.5

76.881, 4

3.0

3.5

4.0

4.5

BH # 5 - Depth 17.0 m

Ground Coefficient

K =P/R = (4.0-1.5)/(76.881-76.854) = 93

76.372, 0.5

76.849, 1.0

76.854, 1.5

76.862, 2.0

. , .

0.0

0.5

1.0

1.5

2.0

.

76.300 76.400 76.500 76.600 76.700 76.800 76.900 77.000

Stress

P

Deformation R


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77.042, 5.5

77.043, 6.0

77.045, 6.5

77.046, 7.0

77.050, 7.5

77.051, 8.0

6.0

7.0

8.0

9.0

BH # 5 - Depth 22.0 m

Ground Coefficient

K =P/R = (5.0-1.0)/(77.041-77.003) = 105

76.773, 0.5

77.003, 1.0

77.015, 1.5

77.020, 2.0

77.025, 2.5

77.030, 3.0

77.031, 3.5

77.036, 4.0

77.037, 4.5

77.041, 5.0

0.0

1.0

2.0

3.0

4.0

.

76.750 76.800 76.850 76.900 76.950 77.000 77.050 77.100

St

ress

P

Deformation R


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77.126, 3.5

77.131, 4

77.135, 4.5

77.133, 5

77.141, 5.5

4.0

5.0

6.0

BH # 5 - Depth 27.0 m

Ground Coefficient

K = P/R = (4.5-1.5)/(77.135-77.114) = 143

76.736, 0.5

77.124, 1.0

77.114, 1.5

77.119, 2.0

77.120, 2.5

77.121, 3

0.0

1.0

2.0

3.0

76.700 76.750 76.800 76.850 76.900 76.950 77.000 77.050 77.100 77.150 77.200

St

ress

P

Deformation R


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76.166, 5.5

76.167, 6.0

76.168, 6.5

76.165, 7.0

76.166, 7.5

76.171, 8.0

6.0

7.0

8.0

9.0

BH # 5 - Depth 32.0 m

Ground Coefficient

K =P/R = (4.0-1.0)/(76.124-76.118) = 500

76.118, 1.0

76.119, 1.5

76.120, 2.0

76.121, 2.5

76.122, 3.0

76.123, 3.5

76.124, 4.0

76.125, 4.5

. , .

0.0

1.0

2.0

3.0

4.0

.

76.110 76.120 76.130 76.140 76.150 76.160 76.170 76.180

Stress

P

Deformation R


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76.843, 5.5

76.844, 6.0

76.845, 6.5

76.846, 7.0

76.844, 7.5

76.845, 8.0

6.0

7.0

8.0

9.0

BH # 5 - Depth 37.0 m

Ground Coefficient

K =P/R = (5.5-3.0)/(76.843-76.838) = 500

76.827, 1.0

76.839, 1.5

76.836, 2.0

76.837, 2.5

76.838, 3.0

76.839, 3.5

76.840, 4.0

76.841, 4.5

76.842, 5.0

0.0

1.0

2.0

3.0

4.0

.

76.825 76.830 76.835 76.840 76.845 76.850

Stress

P

Deformation R


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78.419, 5.5

78.420, 6.0

78.421, 6.5

78.422, 7.0

78.423, 7.5

78.424, 8.0

6.0

7.0

8.0

9.0

BH # 6 - Depth 8.0 m

Ground Coefficient

K = P/R = (8.0-5.0)/(78.424-78.417)= 429

78.124, 1.0

78.269, 1.5

78.365, 2.0

78.407, 2.5

78.409, 3.0

78.410, 3.5

78.415, 4.0

78.420, 4.5

. , .

0.0

1.0

2.0

3.0

4.0

.

78.100 78.150 78.200 78.250 78.300 78.350 78.400 78.450

S

tress

P

Deformation R


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79.826, 5.5

79.832, 6.0

79.833, 6.5

79.839, 7.0

79.840, 7.5

79.846, 8.0

6.0

7.0

8.0

9.0

BH # 6 - Depth 13.0 m

Ground Coefficient

K =P/R = (7.0-5.0)/(79.839-79.820)= 105

79.654, 1.0

79.709, 1.5

79.741, 2.0

79.765, 2.5

79.784, 3.0

79.803, 3.5

79.840, 4.0

79.815, 4.5

. , .

0.0

1.0

2.0

3.0

4.0

.

79.600 79.650 79.700 79.750 79.800 79.850 79.900

S

tress

P

Deformation R


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77.814, 5.5

77.815, 6.0

77.812, 6.5

77.813, 7.0

77.814, 7.5

77.816, 8.0

6.0

7.0

8.0

9.0

BH # 6 - Depth 18.0 m

Ground Coefficient

K = P/R = (5.5-2.5)/(77.814-77.807)= 429

77.796, 1.0

77.801, 1.5

77.806, 2.0

77.807, 2.5

77.809, 3.0

77.810, 3.5

77.811, 4.0

77.812, 4.5

. , .

0.0

1.0

2.0

3.0

4.0

.

77.795 77.800 77.805 77.810 77.815 77.820

S

tress

P

Deformation R


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78.269, 5.5

78.275, 6.0

78.276, 6.5

78.277, 7.0

78.274, 7.5

78.316, 8.0

6.0

7.0

8.0

9.0

BH # 6 - Depth 23.0 m

Ground Coefficient

K =P/R = (7.0-5.0)/(78.280-78.268)= 167

78.181, 1.0

78.203, 1.5

78.216, 2.0

78.230, 2.5

78.239, 3.0

78.248, 3.5

78.254, 4.0

78.263, 4.5

. , .

0.0

1.0

2.0

3.0

4.0

.

78.160 78.180 78.200 78.220 78.240 78.260 78.280 78.300 78.320 78.340

S

tress

P

Deformation R


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78.120, 1.0

0.8

1.0

1.2

BH # 6 - Depth 28.0 m

Probe Rubber Punctured

75.638, 0.0

77.184, 0.5

0.0

0.2

0.4

0.6

75.500 76.000 76.500 77.000 77.500 78.000 78.500

S

tress

P

Deformation R


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76.952, 5.5

76.953, 6.0

76.950, 6.5

76.951, 7.0

76.952, 7.5

76.950, 8.0

6.0

7.0

8.0

9.0

BH # 6 - Depth 33.0 m

Ground Coefficient

K = P/R = (5.5-3.5)/(76.952-76.948)= 500

76.924, 1.0

76.932, 1.5

76.937, 2.0

76.942, 2.5

76.947, 3.0

76.948, 3.5

76.949, 4.0

76.950, 4.5

. , .

0.0

1.0

2.0

3.0

4.0

.

76.920 76.925 76.930 76.935 76.940 76.945 76.950 76.955

S

tress

P

Deformation R


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77.134, 5.5

77.142, 6.0

77.147, 6.5

77.152, 7.0

77.157, 7.5

77.158, 8.0

6.0

7.0

8.0

9.0

BH # 6 - Depth 43.0 m

Ground Coefficient

K =P/R = (5.0-3.0)/(77.129-77.083)= 44

76.961, 1.0

77.011, 1.5

77.046, 2.0

77.063, 2.5

77.083, 3.0

77.095, 3.5

77.108, 4.0

77.120, 4.5

. , .

0.0

1.0

2.0

3.0

4.0

.

76.950 77.000 77.050 77.100 77.150 77.200

S

tress

P

Deformation R


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76.765, 5.5

76.766, 6.0

76.767, 6.5

76.765, 7.0

76.766, 7.5

76.763, 8.0

6.0

7.0

8.0

9.0

BH # 6 - Depth 43.0 m

Ground Coefficient

K = P/R = (6.0-3.5)/(76.766-76.761)= 500

76.741, 1.0

76.750, 1.5

76.754, 2.0

76.755, 2.5

76.760, 3.0

76.761, 3.5

76.762, 4.0

76.763, 4.5

. , .

0.0

1.0

2.0

3.0

4.0

.

76.735 76.740 76.745 76.750 76.755 76.760 76.765 76.770

S

tress

P

Deformation R


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79.279, 3.0

79.333, 3.5

79.369, 4.0

3.0

3.5

4.0

4.5

BH # 9 - Depth 10.0 m

Ground Coefficient

K =

P/

R = (4.0-2.5)/(79.369-79.217)= 10

77.200, 0.5

78.774, 1.0

78.972, 1.5

79.111, 2.0

79.217, 2.5

0.0

0.5

1.0

1.5

2.0

2.5

77.000 77.500 78.000 78.500 79.000 79.500

S

tress

P

Deformation R


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77.357, 5.5

77.358, 6.0

77.359, 6.5

77.520, 7.0

77.525, 7.5

77.530, 8.0

6.0

7.0

8.0

9.0

BH # 9 - Depth 15.0 m

77.332, 1.0

77.333, 1.5

77.338, 2.0

77.343, 2.5

77.344, 3.0

77.345, 3.5

77.346, 4.0

77.347, 4.5

. , .

0.0

1.0

2.0

3.0

4.0

.

77.300 77.350 77.400 77.450 77.500 77.550

S

tress

P

Deformation R

Ground CoefficientK =P/R = (6.5-1.0)/(77.359-77.332)= 204


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77.042, 5.5

77.043, 6.0

77.045, 6.5

77.046, 7.0

77.047, 7.5

77.044, 8.0

6.0

7.0

8.0

9.0

BH # 9 - Depth 20.0 m

Ground Coefficient

K =P/R = (7.0-2.0)/(77.047-77.028)= 263

77.018, 1.0

77.023, 1.5

77.028, 2.0

77.029, 2.5

77.030, 3.0

77.034, 3.5

77.036, 4.0

77.037, 4.5

. , .

0.0

1.0

2.0

3.0

4.0

.

77.015 77.020 77.025 77.030 77.035 77.040 77.045 77.050

S

tress

P

Deformation R


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77.046, 5.5

77.043, 6.0

77.048, 6.5

77.046, 7.0

77.047, 7.5

77.048, 8.0

6

7

8

9

BH # 9 - Depth 25.0 m

Ground Coefficient

K =P/R = (5.0-3.0)/(77.045-77.031)= 143

76.970, 1.5

77.005, 2.0

77.021, 2.5

77.030, 3.0

77.034, 3.5

77.039, 4.0

77.040, 4.5

. , .

0

1

2

3

4

76.960 76.970 76.980 76.990 77.000 77.010 77.020 77.030 77.040 77.050 77.060

S

tress

P

Deformation R


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76.821, 5.5

76.822, 6.0

76.823, 6.5

76.828, 7.0

76.829, 7.5

76.833, 8.0

6.0

7.0

8.0

9.0

BH # 9 - Depth 30.0 m

Ground Coefficient

K =P/R = (5.0-3.0)/(76.824-76.819)= 400

76.804, 1.0

76.813, 1.5

76.814, 2.0

76.818, 2.5

76.819, 3.0

76.820, 3.5

76.822, 4.0

76.823, 4.5

. , .

0.0

1.0

2.0

3.0

4.0

.

76.800 76.805 76.810 76.815 76.820 76.825 76.830 76.835

S

tress

P

Deformation R


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76.684, 5.5

76.689, 6.0

76.693, 6.5

76.694, 7.0

76.695, 7.5

76.696, 8.0

6.0

7.0

8.0

9.0

BH # 9 - Depth 35.0 m

Ground Co-efficient

K =

P/

R = (7.0 -2.0)/(76.694-76.665) = 70

76.620, 1.0

76.650, 1.5

76.658, 2.0

76.663, 2.5

76.671, 3.0

76.676, 3.5

76.677, 4.0

76.682, 4.5

. , .

0.0

1.0

2.0

3.0

4.0

.

76.610 76.620 76.630 76.640 76.650 76.660 76.670 76.680 76.690 76.700 76.710

S

tress

P

Deformation R


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76.250, 5.5

76.251, 6.0

76.256, 6.5

76.257, 7.0

76.258, 7.5

76.259, 8.0

6.0

7.0

8.0

9.0

BH # 9 - Depth 40.0 m

Ground Co-efficient

K =P/R = (4.5 -2.0)/(76.255-76.233) = 114

76.217, 1.0

76.218, 1.5

76.226, 2.0

76.237, 2.5

76.242, 3.0

76.246, 3.5

76.251, 4.0

76.255, 4.5

. , .

0.0

1.0

2.0

3.0

4.0

.

76.210 76.215 76.220 76.225 76.230 76.235 76.240 76.245 76.250 76.255 76.260 76.265

S

tress

P

Deformation R


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76.765, 5.5

76.766, 6.0

76.764, 6.5

76.765, 7.0

76.766, 7.5

76.767, 8.0

6.0

7.0

8.0

9.0

BH # 9 - Depth 44.5 m

Ground Co-efficient

K =P/R = (5.0 -2.0)/(76.760-76.754) = 500

76.741, 1.0

76.750, 1.5

76.754, 2.0

76.755, 2.5

76.756, 3.0

76.757, 3.5

76.758, 4.0

76.759, 4.5

. , .

0.0

1.0

2.0

3.0

4.0

.

76.735 76.740 76.745 76.750 76.755 76.760 76.765 76.770

S

tress

P

Deformation R

R-12-090_Pressure Meter Test Report

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