Introduction to Geotechnical Engineering - Assignment 10 | CVEN 365, Assignments of Civil Engineering

Download Introduction to Geotechnical Engineering - Assignment 10 | CVEN 365 and more Assignments Civil Engineering in PDF only on Docsity! TEXAS A&M UNIVERSITY CVEN 365: Introduction to Geotechnical Engineering Professor Briaud Assignment #10 -Shear strength, Mohr circle - Due 12/2/2003 at 8:00 AM Any late assignment will receive a grade of zero. Not turning in an assignment before the end of the course will result in a failing grade in the course. 1. A soil deposit is made of clay with γt=20 kN/m3. The ground water level is at the ground surface. Calculate the shear strength on a horizontal plane at a depth of 10m, if c = 5 kPa and φ = 30º. 2. The sample on the figure is made of s a) and. Find the stresses on the plane b) , has the sample failed? ist? 3. Two triaxial tests are performed on a clay. At failure, the results are : a) eral case. . σ’ set of axes. c and φ. ctive stress of g) e angle of the plane of failure with the vertical for test No. 1 30º τ σ σ3=20kPa σ1=40kPa σ3=20kPa shown. If φ=40º c) On what plane does the maximum shear stress ex Test 1 : σ3=30kPa, Q=0.45 kN, A=0.01m2, u=10kPa Test 2 : σ3=60kPa, Q=0.70 kN, A=0.01m2, u=20kPa Find σ1, σ3, σ’1, σ’3 at failure. b) Write Coulomb’s law in the gen c) Draw the Mohr Circle at failure in the τ vs d) Draw the failure envelope and find the strength parameters e) Is the clay normally consolidated or over consolidated? f) What is the shear strength s of the clay for a normal effe 100kPa? What is th