shearbox test
DESCRIPTION
shearbox tesrTRANSCRIPT
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oDepartment of Civil EngineeringUniversity of ZimbabweP. O. Box MP 167Tel: 303211
Shear box testProject title Borhole number: BH1Project number Depth: mLocation Sample number:
Date:Soil description
Operator: DPKChecked DPKApproved: DPK
Test method: BS1377 : Part 7 1990:4/5*Type of test Single stage/Multiple reversal* Specimen 1Force device no. kat12 Calibration: 0.936 N/divSpecimen area: 3612 mm2 Rate of displacement: 1 mm/minSpecimen height: 40.3 mm Displ gauge factor (H 1 mm/divMachine no. 2 Displ gauge factor (Ve 0.001 mm/divNormal Stress () 36 kPa
Date/Time Elapsedtimemin
Horizontaldialreading
Horizantaldispl.(mm)
ShearStrain
Verticaldialreading
Verticaldispl.(mm)
Forcegaugereading
Shearstress(kPa)
12:33 0.00 0.00 0.0 5000 0.000 0.0 00.25 0.25 0.6 5000 0.000 31.5 8.160.50 0.50 1.2 4996 0.004 58.0 15.030.75 0.75 1.9 4987 0.013 68.0 17.621.00 1.00 2.5 5016 -0.016 97.5 25.271.25 1.25 3.1 5053 -0.053 112.0 29.021.50 1.50 3.7 5084 -0.084 119.0 30.841.75 1.75 4.3 5123 -0.123 121.0 31.362.00 2.00 5.0 5160 -0.160 122.0 31.612.50 2.50 6.2 5235 -0.235 121.5 31.493.00 3.00 7.4 5312 -0.312 118.0 30.583.50 3.50 8.7 5377 -0.377 114.0 29.544.00 4.00 9.9 5424 -0.424 110.0 28.504.50 4.50 11.2 5455 -0.455 105.0 27.215.00 5.00 12.4 5470 -0.470 102.0 26.435.50 5.50 13.6 5491 -0.491 98.5 25.526.00 6.00 14.9 5504 -0.504 99.0 25.656.50 6.50 16.1 5518 -0.518 98.0 25.40
12:41 7.00 7.00 17.4 5520 -0.520 95.0 24.62
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oDepartment of Civil EngineeringUniversity of ZimbabweP. O. Box MP 167Tel: 303211
Shear box testProject title Borhole number: BH1Project number Depth: mLocation Sample number:
Date:Soil description
Operator: DPKChecked DPKApproved: DPK
Test method: BS1377 : Part 7 1990:4/5*Type of test Single stage/Multiple reversal* Specimen 2Force device no. kat12 Calibration: 0.936 N/divSpecimen area: 3612 mm2 Rate of displacement: 1 mm/minSpecimen height: 40.3 mm Displ gauge factor (H 1 mm/divMachine no. 2 Displ gauge factor (Ve 0.001 mm/divNormal Stress () 36 kPa
Date/Time Elapsedtimemin
Horizontaldialreading
Horizantaldispl.(mm)
ShearStrain
Verticaldialreading
Verticaldispl.(mm)
Forcegaugereading
Shearstress(kPa)
12:33 0.00 0.00 0.0 5000 0.000 0.0 00.25 0.25 0.6 5000 0.000 31.5 8.160.50 0.50 1.2 4996 0.004 58.0 15.030.75 0.75 1.9 4987 0.013 68.0 17.621.00 1.00 2.5 5016 -0.016 97.5 25.271.25 1.25 3.1 5053 -0.053 112.0 29.021.50 1.50 3.7 5084 -0.084 119.0 30.841.75 1.75 4.3 5123 -0.123 121.0 31.362.00 2.00 5.0 5160 -0.160 122.0 31.612.50 2.50 6.2 5235 -0.235 121.5 31.493.00 3.00 7.4 5312 -0.312 118.0 30.583.50 3.50 8.7 5377 -0.377 114.0 29.544.00 4.00 9.9 5424 -0.424 110.0 28.504.50 4.50 11.2 5455 -0.455 105.0 27.215.00 5.00 12.4 5470 -0.470 102.0 26.435.50 5.50 13.6 5491 -0.491 98.5 25.526.00 6.00 14.9 5504 -0.504 99.0 25.656.50 6.50 16.1 5518 -0.518 98.0 25.40
12:41 7.00 7.00 17.4 5520 -0.520 95.0 24.62
-
oDepartment of Civil EngineeringUniversity of ZimbabweP. O. Box MP 167Tel: 303211
Shear box testProject title Borhole number: BH1Project number Depth: mLocation Sample number:
Date:Soil description
Operator: DPKChecked DPKApproved: DPK
Test method: BS1377 : Part 7 1990:4/5*Type of test Single stage/Multiple reversal* Specimen 3Force device no. kat12 Calibration: 0.936 N/divSpecimen area: 3612 mm2 Rate of displacement: 1 mm/minSpecimen height: 40.3 mm Displ gauge factor (H 1 mm/divMachine no. 2 Displ gauge factor (Ve 0.001 mm/divNormal Stress () 36 kPa
Date/Time Elapsedtimemin
Horizontaldialreading
Horizantaldispl.(mm)
ShearStrain
Verticaldialreading
Verticaldispl.(mm)
Forcegaugereading
Shearstress(kPa)
12:33 0.00 0.00 0.0 5000 0.000 0.0 00.25 0.25 0.6 5000 0.000 31.5 8.160.50 0.50 1.2 4996 0.004 58.0 15.030.75 0.75 1.9 4987 0.013 68.0 17.621.00 1.00 2.5 5016 -0.016 97.5 25.271.25 1.25 3.1 5053 -0.053 112.0 29.021.50 1.50 3.7 5084 -0.084 119.0 30.841.75 1.75 4.3 5123 -0.123 121.0 31.362.00 2.00 5.0 5160 -0.160 122.0 31.612.50 2.50 6.2 5235 -0.235 121.5 31.493.00 3.00 7.4 5312 -0.312 269.0 69.713.50 3.50 8.7 5377 -0.377 114.0 29.544.00 4.00 9.9 5424 -0.424 110.0 28.504.50 4.50 11.2 5455 -0.455 105.0 27.215.00 5.00 12.4 5470 -0.470 102.0 26.435.50 5.50 13.6 5491 -0.491 98.5 25.526.00 6.00 14.9 5504 -0.504 99.0 25.656.50 6.50 16.1 5518 -0.518 98.0 25.40
12:41 7.00 7.00 17.4 5520 -0.520 95.0 24.62
-
Department of Civil EngineeringUniversity of ZimbabweP. O. Box MP 167Tel: 303211
Shear box testProject title Borhole number: BH1Project number Depth: mLocation Sample number:
Date:Soil description
Operator: DPKChecked DPKApproved: DPK
Stress-strain
0
5
10
15
20
25
30
35
0.0 5.0 10.0 15.0 20.0Shear strain %
Shea
r str
ess,
K
Pa
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Department of Civil EngineeringUniversity of ZimbabweP. O. Box MP 167Tel: 303211
Shear box testProject title Borhole number: BH1Project number Depth: mLocation Sample number:
Date:Soil description
Operator: DPKChecked DPKApproved: DPK
Test number 1 2 3 4 5Rate of displacement mm/minNormal stress kPa 13 26 39 52 0Peak shear stress kPa 17.5 22.4 26.2 31 13.2Displ at peak shear stress mmShear stress at critical void ratio kPa 10 12 14 16Displ at critical void ratio mmResidual shear stress kPa 10 13 16 19Number of travelsDispl at residual shear stress mm
Shear strengthMaximum
cohesion c' 13.2 kPafriction angle ' 18.8 o
At critical void ratiocohesion c'c 8.0 kPafriction angle 'c 8.7 o
Residualcohesion c'R 7.0 kPafriction angle 'R 13.0 o
Shear box test
y = 0.3408x + 13.2
0
5
10
15
20
25
30
35
0 5 10 15 20 25 30 35 40 45 50 55Normal stress, (kPa)
Shea
r str
ess,
(kP
a)
Shearbox test; ShearingStress strain graphShearbox test; graph