POST-CYCLIC CONSOLIDATION RESPONSE OF A NATURAL LOW PLASTIC SILT DUE TO DISSIPATION OF CYCLIC EXCESS PORE WATER PRESSURES

摘要：

The post-cyclic consolidation response of a natural low-plastic silt was examined using undisturbed silt specimens tested in a constant volume cyclic direct simple shear (DSS) device. The silt specimens initially subjected to constant volume cyclic loading at different cyclic stress ratios (CSRs), until different values of cyclic shear strain were reached, were subsequently allowed to experience one-dimensional consolidation.Post-cyclic consolidation volumetric strains (εv-ps) were noted to increase with the maximum pore water pressure generated during cyclic loading as well as with the maximum cyclic shear strain to which the specimens were subjected during cyclic loading. The values of εv-ps correlated well with the excess pore water pressure ratio (ru)during constant volume cyclic loading prior to consolidation.

关键词： fine-grained soils cyclic shear response post-cyclic consolidation silt

作者: D.Wijewickreme M.V.Sanin

作者单位: Associate Professor,Dept.of Civil Engineering,University of British Columbia,Vancouver,Canada PhD Candidate,Dept.of Civil Engineering,University of British Columbia,Vancouver,Canada

会议类型: 国际会议

会议名称: 14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-12（万方平台首次上网日期，不代表论文的发表时间）