文档介绍：水道港口第36卷第2期[J].Rock and Soil Mechanics,2000,21(1):20-24.[11]王淑云,鲁晓兵,[J].岩土力学,2009,30(10):2 991-2 S Y,LU X B,ZHAO J,et loading undrained strength degradation characteristics of silty clay[J].Rock andSoil Mechanics,2009,30(10):2 991-2 and application on strength weakening character of littoral soft clayaffected by cyclic loading under different influencing factorsWANG Yuanzhan1, YANG Panbo1, SUN Xiping2, CUI Yanqiang2(1. Tianjin Key Laboratory of Port and Ocean Engineering, Tianjin University, Tianjin 300072, China; Institute for Water Transport Engineering, Key Laboratory of Harbor & Marine Structure Safety, Ministry ofTransport, Tianjin 300456, China)Abstract: With the development of offshore engineering,strength reduction of soft clay foundation under cyclic loading is attracting more attention. By means of performing cyclic triaxial test on muddy clay taken from Yantai littoral zone, undrained shear strength weakening and stress path of clay has been studied in different confiningstress, deviator stress and dynamic stress. Given the actual soil condition in the engineering, the effect of consolidation degree has also been studied. Critical dynamic stress ratio has been found in the test. When the dynamic stressratio is less than or equal to , strength reduction is affected by consolidation degree i