The following are the results of four drained direct shear tests on undisturbed normally con having a diameter of 2.0 inches and height of 1.0 inch. a) Draw a graph on excel for shear stress at failure against the normal stress and determi friction from the graph. b) If a drained triaxial test is conducted on the same soil with a chamber confining pressu would be the deviator stress at failure? c) For part b, what is the inclination of the failure plane with the major principal plane? Normal Force Shear Force at Test No. (lbf) Failure (lbf) 1 56.2 31.2 84.3 47.0 101.1 56.2 121.4 67.4 234 4

The following are the results of four drained direct shear tests on undisturbed normally con having a diameter of 2.0 inches and height of 1.0 inch. a) Draw a graph on excel for shear stress at failure against the normal stress and determi friction from the graph. b) If a drained triaxial test is conducted on the same soil with a chamber confining pressu would be the deviator stress at failure? c) For part b, what is the inclination of the failure plane with the major principal plane? Normal Force Shear Force at Test No. (lbf) Failure (lbf) 1 56.2 31.2 84.3 47.0 101.1 56.2 121.4 67.4 234 4

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter12: Shear Strength Of Soil

Section: Chapter Questions

Problem 12.4P

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