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基于黄土的物理力学特性,利用高度非线性有限元分析软件MSC.MARC,采用Druker-Prager模型对黄土地层中地下连续墙基础的沉降进行了三维有限元数值模拟,计算结果表明:墙芯土的竖向变形主要发生在墙顶附近;墙端以下土体的竖向变形随着深度的增加而迅速减小;墙端下约1.5倍的基础宽范围内土体的竖向变形为整个基础沉降的主要部分。
Based on the physical and mechanical properties of loess, the 3D nonlinear finite element numerical simulation of the settlement of the diaphragm wall in the loess stratum was carried out by using the highly nonlinear finite element analysis software MSC.MARC. The Druker-Prager model was used to simulate the settlement of the diaphragm wall. Vertical deformation mainly occurs near the top of the wall. The vertical deformation of the soil below the wall ends decreases rapidly with the increase of depth. The vertical deformation of the soil within about 1.5 times of the base width under the wall ends is the whole foundation settlement The main part.