土力学简答题（Simple answer to soil mechanics）.doc

土力学简答题（Simple answer to soil mechanics） 1. what is the difference between the normal consolidated clay and over consolidated clay? What are the compressive and strength properties of the consolidated clays? 2. briefly describe the factors that affect soil compaction 3. what are the forms of ground failure? What kind of soil foundation will happen? 4. under the same conditions, the settlement of over consolidated clay must be less than that of normal consolidated clay Why? Factor? 5. what are the forms of the sliding surface that slopes occur? What happens respectively? How many methods can be used to calculate the stability safety factor of cohesive soil slope without seepage? 6. what are the types of ground failure? Modified Terzaghi ultimate bearing capacity formula is suitable for what kind of failure types of foundation? The Terzaghi ultimate bearing capacity formula specify the position of the water table is how to influence on the bearing capacity? 7, the Terzaghi effective stress principle. 8, brief description of soil failure forms, what are they? 9. The limit equilibrium theory of soil is used to explain the concept of active earth pressure and passive earth pressure. 10, what is the root cause of soil slope instability? 11. What is the difference of settlement between cohesive soil and sandy soil foundation after loading? 12. What are the physical states of cohesive soil and cohesionless soil? How to express and evaluate? 13, the P~S curve of the load test is used to explain the process of the overall shear failure of the foundation soil 14. What is Coulombs law? Write a mathematical expression and explain the meaning of a symbol. 15, what is the thickness of the compressed layer (settlement calculation depth), how to determine? How are stratified layers calculated by the method of layered summation? 16, what are the conditions for producing quicksand? Are those soils prone to quicksand? What are the hazards of quicksand? How to prevent? 17, there are seve