2. A soil specimen is subjected to a tri-axial test. The soil specimen is cohesionless. If the shear stress that causes failure is 280 kPa and the normal stress at failure is only 480 kPa. a) Determine the angle of shearing resistance, b) Determine the angle that the failure plane measured from the major principal plane. c) Determine the total axial stress at which failure is expected to occur.

Principles of Foundation Engineering (MindTap Course List)
9th Edition
ISBN:9781337705028
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter2: Geotechnical Properties Of Soil
Section: Chapter Questions
Problem 2.18P
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2. A soil specimen is subjected to a tri-axial test. The soil
specimen is cohesionless. If the shear stress that causes
failure is 280 kPa and the normal stress at failure is only
480 kPa.
a) Determine the angle of shearing resistance,
b) Determine the angle that the failure plane
measured from the major principal plane.
c) Determine the total axial stress at which failure is
expected to occur.

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