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2. You measure the shear strength of a clayey soil sample to be 41 kPa at an effective normal stress of 50 kPa, and to be 65 kPa at an effective normal stress of 200 kPa. What is the friction angle of the sample to the nearest degree?

2. You measure the shear strength of a clayey soil sample to be 41 kPa at an effective normal stress of 50 kPa, and to be 65 kPa at an effective normal stress of 200 kPa. What is the friction angle of the sample to the nearest degree?

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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2. You measure the shear strength of a clayey soil sample to be 41 kPa at an effective normal stress of 50 kPa, and to be 65 kPa at an effective normal stress of 200 kPa. What is the friction angle of the sample to the nearest degree? **Analysis/Explanation:** The problem involves determining the friction angle of a soil sample based on given shear strength and effective normal stress values. Using these parameters, you can perform a linear regression analysis or use the Mohr-Coulomb failure criterion to calculate the friction angle.
Transcribed Image Text:2. You measure the shear strength of a clayey soil sample to be 41 kPa at an effective normal stress of 50 kPa, and to be 65 kPa at an effective normal stress of 200 kPa. What is the friction angle of the sample to the nearest degree? **Analysis/Explanation:** The problem involves determining the friction angle of a soil sample based on given shear strength and effective normal stress values. Using these parameters, you can perform a linear regression analysis or use the Mohr-Coulomb failure criterion to calculate the friction angle.
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Step 1

Here we have given two soil samples and we have to calculate the angle of friction of soil sample 

To calculate the angle of friction we will use equation of shear strength as given in calculation below.

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