Exam 2 Solved | Introduction to Geotechnical Engineering | CIVL 2630, Exams of Engineering

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CIVL 2630 — Introduction to Geotechnical Engineering | Fall 2014 Exam #2 — Monday, November 24", 2014 Open book, open notes. State your assumptions. Work neatly. Show all your work — if you don’t show your work, little or no credit will be given. 4 problems, not equally weighted. i /Pssv susie) Wikts He |[@ur mus Vo owe a |fuowcome Yim cone |[ Wow, Y On, 1 OnE FASHER TO QUESTION THO"]] 15 A TRick | l¥You wrote | jo SET THIS| | THANKS! / IV 10 YOU. a SOMETHING | QUESTION | + h = MAH QUESTION DIFFERENT ? ELI MAUTNEY ] | PROBLEM ea 1. Short answer questions: A. How is the effective stress of soil calculated? (4pts) _~ y eles Geiclal Sires G=e-n +t Ose NS ee (= pore Pass B. What is one method of measuring shia strength of soils in the field? (4pts) Vane S\tac ‘ C. What is the expression for the equivalent vertical permeability in a layered soil deposit? (4pts) oe D. The following laboratory test results were likely obtained from what type of experiment? (4pts) Uncoatees Compression. ey feo Shear sttess, \, Total stress Mohr's \ circle at failure oy =0 OL = bin Normal stress .- The sand in the tank (at right) is in a quick condition, i.e., icksand, What is the effective stress at the bottom of the er? (4pts) vee quick CO poh \ons eMedve . belincens whe, SQnb Gears 4