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摘要：
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本文首先利用Ariake饱和软粘土动三轴试验的结果，提出了一种计算软粘土孔隙水压力增长和残余应变的模式，并将计算得到的结果与不排水和部分排水情况下室内试验所观测到的循环加载导致的孔隙水压力及残余应变进行比较，两者具有较好的吻合性，在此基础上提出了一种计算软粘土振陷问题的有效应力动力分析方法，并结合实例，分别对不同构筑物在长期动力荷载作用厂的振陷问题作了计算和分析。
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Using Ariake's dynamic triaxial test results of the saturated soft clay, this paperprovides a mode for calculating the increase of pore water pressure of a soft clay and the residualstrain, and compares the calculated results with the observed pore water pressure and residualstrain caused by applying load cyclically under undrained and partial drained conditions in alaboratory. It is found that the above two results fitted well. On this basis a method to calculatean effective dynamic stress for dynamic settlement of a soft clay is presented. Combined with someexamples, calculations and analysis on the dynamic settlement of various structures under theaction of a long term dynamic load are separately carried out.
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作者简介：
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参考文献：
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1H.B.Seed,et al.clay Strength under EarthquakeLoading Condltion.Journal of the Soil mechanics andFoundations Division.ASCE,1996; 92(SM2).
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8J.Zhou,J.Du,Analysis of Foundation Settlement Dueto Earthquake.ASCE Geotechnical EngineeringDivision Specialty Conference Proceedings ofSettements 1994;94(A244).
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