Three CU tri-axial tests were performed oa samples retrieved from a 4-meter-thick layer of saturated clay layer (ysat-20.7 KN'cubic meter). The top of the clay and the water level are at the ground surface. The results of these three tests (in kNisq. m) are summarized ia the following table: Test Chamber Pressure, o3 Deviator Stress, Aod Pore Pressurea Failure (KNsq a) AU. (KNsq m) 171 1) 82 -13 2) 156 302 56| 3) 257 414 84 a. Determine graphically and by formula the Motr-Coulomb effective shear strength parameterse (in kN'sq m) aad o b. Estimate the shear streogth in the middle of the clay layer in kN/sq m.

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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Three CU tri-axial tests were performed oa samples retrieved from a 4-meter-thick
layer of saturated clay layer (ysat-20.7 KN cubic meter). The top of the clay and
the water level are at the ground surface. The results of these three tests (in kN/sq.
m) are summarized ia the following table:
Test Chamber Pressure, o3 Deviator Stress, Aod Pore Pressure@ Failure
AU, (KNsq m)
(KNsq m)
1)
82
171
-13
2)
156
302
-56|
3)
257
414
-84
a. Determine graphically and by formula the Motr-Coulomb effective shear
strength parameters e (in kN'sq m) aad o
b. Estimate the shear strength in the middle of the clay layer in kN/sq m.
Transcribed Image Text:Three CU tri-axial tests were performed oa samples retrieved from a 4-meter-thick layer of saturated clay layer (ysat-20.7 KN cubic meter). The top of the clay and the water level are at the ground surface. The results of these three tests (in kN/sq. m) are summarized ia the following table: Test Chamber Pressure, o3 Deviator Stress, Aod Pore Pressure@ Failure AU, (KNsq m) (KNsq m) 1) 82 171 -13 2) 156 302 -56| 3) 257 414 -84 a. Determine graphically and by formula the Motr-Coulomb effective shear strength parameters e (in kN'sq m) aad o b. Estimate the shear strength in the middle of the clay layer in kN/sq m.
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