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通过对南海重塑粉质粘土土样的大量动三轴试验结果分析 ,得到此种土在波浪荷载作用后不排水抗剪强度衰化同动载作用引起的动应变幅及平均累积孔压之间的相互关系和预估公式 ;并通过与超固结土样的静三轴剪切试验结果的比较 ,发现动、静三轴两种试验结果具有很好的吻合关系。建议可用超固结土样的静三轴剪切试验同时结合部分动三轴试验来预估土样在波浪荷载作用后不排水抗剪强度衰化与平均累积孔压之间的关系。
Through the analysis of a large number of dynamic triaxial tests on the remolded silty clay samples from the South China Sea, the dynamic strain amplitude and the average cumulative pore pressure caused by undrained shear strength degradation and dynamic loading of such soil after wave loading are obtained And through the comparison with the static triaxial shear test results of the overconsolidated soil samples, it is found that the dynamic and static triaxial test results are in good agreement with each other. It is suggested that the static triaxial shear test of overconsolidated soil can be used to predict the relationship between the undrained shear strength degradation and the average cumulative pore pressure of soil after the wave loading.