The Influence of Previous Cyclic Loading on Liquefaction Behavior of Sand

• Main Authors: Sung-Wang Wu, 吳松旺
• Other Authors: Yao-Chung Chen
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/d8csp5

碩士 === 國立臺灣科技大學 === 營建工程系 === 94 === This research investigates the liquefaction resistance and the maximum shear modulus of Hsin-Dian sand by using cyclic triaxial tests together with bender element tests. The factors to be studied include previous cyclic loading and fines content. Test results show that liquefaction resistance generally would increase with increasing previous cyclic loading up to a critical value, and then it would start decreasing with further increase of previous cyclic loading. The critical value of previous cyclic loading would change with different fines content. In this research, the shear wave velocities of the samples presheared by cyclic loading did not change obviously. The shear wave velocity is influenced mostly by relative density. It indicates that the level of disturbance due to previous cyclic loading is not high enough to have obvious effect on the shear wave velocity.