During a subsoil exploration program, undisturbed normally consolidated silty clay samples were collected in Shelby tubes from location A as shown in Figure 12.54. Figure 12.54 2m G.W.T Silty stnd 0.72; G, 2.69 2,2 m 3.5 m 5.25 m Silty clay w = 22%; G, = 2.72 A Poorly graded sand Yut19.8 kN/m 2.6 m2 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.

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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During a subsoil exploration program, undisturbed normally consolidated silty clay samples were
collected in Shelby tubes from location A as shown in Figure 12.54.
Figure 12.54
2 m
Silty sund
e = 0.72; G, 2.69
G.W.T
2,2 m
3.5 m
5.25 m
Silty clay
w = 22%; G, = 2.72
%3D
A e
Poorly graded sand
Yut= 19.8 kN/m
2,6 m.
Following are the results of four drained, direct shear tests conducted
the clay samples with
each having a diameter of 63.5 mm and height of 32 mm.
Normal
force
Shear force
at failure
Test
no.
(N)
(N)
1
84
28.9
2
168
59.6
3
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 field at location A.
Transcribed Image Text:During a subsoil exploration program, undisturbed normally consolidated silty clay samples were collected in Shelby tubes from location A as shown in Figure 12.54. Figure 12.54 2 m Silty sund e = 0.72; G, 2.69 G.W.T 2,2 m 3.5 m 5.25 m Silty clay w = 22%; G, = 2.72 %3D A e Poorly graded sand Yut= 19.8 kN/m 2,6 m. Following are the results of four drained, direct shear tests conducted the clay samples with each having a diameter of 63.5 mm and height of 32 mm. Normal force Shear force at failure Test no. (N) (N) 1 84 28.9 2 168 59.6 3 254 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 field at location A.
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