) A conventional consolidated drained (CD) triaxial test was conducted on saturated clean sand sample by using the following steps : (1) Set cell pressure to 250 kPa and allow the sample to consolidate with its drainage valve open at 100 kPa back pressure. (2) Shear the sample without any change in the drainage condition. The sample failed when the deviator stress reached 300 kPa. Use analytical solution to determine: (1) The slope of failure envelope in degrees. Assume c' to be zero. (ii) Slope of the failure plane in degrees. (iii) Shear stress and normal stress on the failure plane (in kPa). (iv) The maximum shear stress at failure (in kPa).

) A conventional consolidated drained (CD) triaxial test was conducted on saturated clean sand sample by using the following steps : (1) Set cell pressure to 250 kPa and allow the sample to consolidate with its drainage valve open at 100 kPa back pressure. (2) Shear the sample without any change in the drainage condition. The sample failed when the deviator stress reached 300 kPa. Use analytical solution to determine: (1) The slope of failure envelope in degrees. Assume c' to be zero. (ii) Slope of the failure plane in degrees. (iii) Shear stress and normal stress on the failure plane (in kPa). (iv) The maximum shear stress at failure (in kPa).

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter4: Plasticity And Structure Of Soil

Section: Chapter Questions

Problem 4.8P

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