Soil Mechanics Exam 5 questions with correct answers
What is the definition of Shear Strength CORRECT ANSWER The largest stress a soil can take without failure (the greatest stress the material can sustain) What is the definition of shear CORRECT ANSWER The failure mode due to the compressive forces What are the two design criteria that must be satisfied CORRECT ANSWER Ultimate Strength must be large enough so FS = 1 (in reality FS should be greater than 1) Serviceability limit, usually less than 1" of settlement Is having a FS of 0.8 better than having a FS of 0.7? Why? CORRECT ANSWER No, if the factor of safely is less than 1, it fails, no matter how much less than 1 Can soil take tension? CORRECT ANSWER No What categories is shear strength divided into? CORRECT ANSWER Frictional Strength and Cohesive Strength Where does failure occur in soil? CORRECT ANSWER The contact between the particles Which type of strength is dependent on stress? Which type is independent of stress? CORRECT ANSWER Frictional is dependent Cohesive is independent Which types of soils are frictional materials? CORRECT ANSWER
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