Results from a direct shear test on a sandy soil are given in the following table. The shear box is 62 x 62 mm square in plan. Determine the followings. a) The internal friction angles at peak and residual states. b) Principal stresses and their directions inside the box at the peak strength when the normal stress is 70 kPa. Vertical load (kg) Shear force at peak (N) Shear force at residual (N) 10 96.3 80.1 22 191.8 160.2 33 288.8 240.3

Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Braja M. Das, Khaled Sobhan
Chapter10: Stresses In A Soil Mass
Section: Chapter Questions
Problem 10.13P: Repeat Problem 10.12 for q = 700 kN/m2, B = 8 m, and z = 4 m. In this case, point A is located below...
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Results from a direct shear test on a sandy soil are given in the following table. The
shear box is 62 x 62 mm square in plan. Determine the followings.
a) The internal friction angles at peak and residual states.
b) Principal stresses and their directions inside the box at the peak strength
when the normal stress is 70 kPa.
Vertical load (kg)
Shear force at peak (N)
Shear force at residual (N)
10
96.3
80.1
22
191.8
160.2
33
288.8
240.3
Transcribed Image Text:Results from a direct shear test on a sandy soil are given in the following table. The shear box is 62 x 62 mm square in plan. Determine the followings. a) The internal friction angles at peak and residual states. b) Principal stresses and their directions inside the box at the peak strength when the normal stress is 70 kPa. Vertical load (kg) Shear force at peak (N) Shear force at residual (N) 10 96.3 80.1 22 191.8 160.2 33 288.8 240.3
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