饱和软粘土及其在冲击荷载作用后的次固结变形

The Secondary Consolidation Deformation of Soft Clay After Impact Loading

根据室内试验结果对饱和软粘土次固结变形的机理作了研究，特别分析了主固结阶段的次固结效应问题．根据冲击再固结后主体次固结变形显著减小的事实，从理论上推导了一个用似超固结比来定量描述次固结变形衰减的经验公式．最后给出使用荷载条件下，主体的变形计算方法．

Based on test results,the mechanism of secondary consolidation de formation of saturated soft clay is studied in this paper firstly. Particularly,the secondary consolidation effect during consolidation is analysed. Secondly,according to the fact that the secondary compressiong can be decreased greatly by impacting and reconsolidation,an empirical formula that describes the distortion of secondary consolidation deformation is suggested by using quasi-overconsolidation ratio.