格形地连墙的三维有限元分析  

Three-dimensional finite element analysis of cellular diaphragm wall

作　　者：时爱祥 邓祥吉 仇建春[3] 梁嘉琛 戴波[3] 

机构地区：[1]江苏省水利建设工程有限公司,江苏扬州225009 [2]四川省德阳市水务局,四川德阳618000 [3]河海大学水利水电学院,南京210098

出　　处：《南水北调与水利科技》2015年第3期571-574,共4页South-to-North Water Transfers and Water Science & Technology

摘　　要：应用ABAQUS有限元软件,采用三维有限单元法模拟某基坑开挖过程,重点分析了格形地下连续墙的水平位移与应力分布。研究发现,格形地连墙与一般地连墙的位移分布特征不同,墙顶位移较小,墙底位移最大;内外纵墙通过隔墙相连增强了整体的稳定性,隔墙因此处于受拉状态。研究结果可为工程方案设、基坑工程的安全与稳定性的论证提供依据。Three-dimensional finite element method was used to simulate the excavation process of a foundation pit and to analyze the horizontal displacement and stress distribution of the cellular diaphragm wall. Finite element software ABAQUS was used to conduct the simulation. The results showed that the displacement distribution characteristics of the cellular diaphragm wall are different from those of the general diaphragm wall with smaller displacement at the wall top but largest displacement at wall bottom. The internal and external longitudinal walls are connected through the partition wall, which enhances the overall stabili- ty, and the partition wall bears the tension. The research provides the theoretic basis for engineering design, and the demonstra- tion of safety and stability of the foundation pit engineering.

关 键 词：基坑开挖 格形地下连续墙 位移 应力 有限元 

分 类 号：TV698.1[水利工程—水利水电工程] TP18[自动化与计算机技术—控制理论与控制工程]