摘要
本文从经典弹塑性理论出发，根据Ｐｒｅｖｏｓｔ模型的基本原理，把弹塑性运动硬化规律与等向硬化规律结合起来，引入塑性硬化模量场的概念，推导了土体的弹塑性本构关系．通过试验建立了动模量弱化公式．并将弱化公式与本构关系结合起来应用于软土地基的动变形计算还对“渤海六号”石油钻井平台在波浪荷载作用下的沉降，进行了模拟计算．
The law of degradation of plastic modulus in soft saturated clay is obtained through the dynamic triaxial tests under cyclic load for Bobal Sea bed samples.Based on the results of experiments and combined with Prerost's model,a elastic FEM model to calculate the dynamic strain of saturated soft clay is established.According to this elastic FEM mode the settlement of the saturated clay foundation is calculated.
出处
《水利学报》
EI
CSCD
北大核心
1994年第7期51-55,共5页
Journal of Hydraulic Engineering
基金
国家自然科学基金
关键词
饱和软粘土
变形
动态应变
计算
modulus degradation,cyclic load,dynamic strain.
