SIMULATION OF POST-LIQUEFACTION BEHAVIOR OF SAND CONSIDERING EFFECT OF WATER ABSORPTION IN SHEAR
Existing methods of evaluation based on the undrained behavior cannot always provide a realistic prediction to post-liquefaction deformation and strength behavior of saturated sands. Redistribution of water content or void redistribution in saturated sand during a shearing application is referred to as the water absorption in shear.Previous experimental facts show that occurrence of the water absorption in shear after an earthquake is one of the main reasons why large lateral flow slides happened in liquefied looser to medium dense sands. A new constitutive model considering effect of the water absorption in shear has been developed for description of the post-liquefaction stress-strain response of saturated sand subjected to an application of monotonically shearing in any arbitrary drainage condition. Essential effectiveness of the proposed constitutive model was confirmed experimentally.
saturated sand post-liquefaction behavior water absorption in shear constitutive equation
Jian-Min ZHANG Fuqiang WANG
School of Civil Engineering, Tsinghua University, Beijing, PRC;State Key Laboratory of Hydroscience School of Civil Engineering, Tsinghua University, Beijing, PRC
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）