Following are the results of four drained, direct shear tests conducted on the clay samples with each having a diameter of 63.5 mm and height of 32 mm. Shear Normal force (N) Test Number force at failure (N) 1 84 28.9 168 59.6 3 254 89.1 4 360 125.3 a. Determine the drained angle of friction for the silty clay soil.

Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Braja M. Das, Khaled Sobhan
Chapter17: Subsoil Exploration
Section: Chapter Questions
Problem 17.12P
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* Question Completion Status:
Poorly graded sand
= 19.8 kN/m
2.6 m
Ysat
Following are the results of four drained, direct shear tests conducted on the
clay samples with each having a diameter of 63.5 mm and height of 32 mm.
Shear
Normal force
(N)
Test Number
force at
failure (N)
84
28.9
168
59.6
254
89.1
4
360
125.3
a. Determine the drained angle of friction for the silty clay soil.
b. Determine the shear strength of the clay in the eld at location A.
Attach File
Transcribed Image Text:* Question Completion Status: Poorly graded sand = 19.8 kN/m 2.6 m Ysat Following are the results of four drained, direct shear tests conducted on the clay samples with each having a diameter of 63.5 mm and height of 32 mm. Shear Normal force (N) Test Number force at failure (N) 84 28.9 168 59.6 254 89.1 4 360 125.3 a. Determine the drained angle of friction for the silty clay soil. b. Determine the shear strength of the clay in the eld at location A. Attach File
* Question Completion Status:
Poorly graded sand
= 19.8 kN/m
2.6 m
Ysat
Following are the results of four drained, direct shear tests conducted on the
clay samples with each having a diameter of 63.5 mm and height of 32 mm.
Shear
Normal force
(N)
Test Number
force at
failure (N)
84
28.9
168
59.6
254
89.1
4
360
125.3
a. Determine the drained angle of friction for the silty clay soil.
b. Determine the shear strength of the clay in the eld at location A.
Attach File
Transcribed Image Text:* Question Completion Status: Poorly graded sand = 19.8 kN/m 2.6 m Ysat Following are the results of four drained, direct shear tests conducted on the clay samples with each having a diameter of 63.5 mm and height of 32 mm. Shear Normal force (N) Test Number force at failure (N) 84 28.9 168 59.6 254 89.1 4 360 125.3 a. Determine the drained angle of friction for the silty clay soil. b. Determine the shear strength of the clay in the eld at location A. Attach File
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