基于双曲线非线性弹簧元的地下连续墙有限元分析  

The FEM Analysis of Underground Diaphragm Wall Based on Hyperbolic Nonlinear Spring Element

作　　者：徐炳伟[1] 

机构地区：[1]天津大学建筑工程学院,天津300072

出　　处：《沈阳理工大学学报》2006年第4期80-83,共4页Journal of Shenyang Ligong University

摘　　要：采用双曲线非线性弹簧单元模拟周围地基土与地下连续墙之间的相互作用,考虑土多层分布以及施工因素等影响,建立地下连续墙的有限元数值计算模型,计算开挖过程中地下连续墙变形、内力、支撑内力、墙侧土压力变化及分布情况.工程实例表明,该模型计算所得的结果与工程实际吻合较好,可以有效模拟基坑开挖整个过程,指导地下连续墙设计和施工.The finite element method analysis model of the underground diaphragm wall is established based on the hyperbolic nonlinear spring elements to simulate the interaction between the wall and me foundation soil, in which different soil strata effects and many construction factors can be considered. The underground diaphragm wall＇s deformation, internal forces, lateral soil pressures and the internal forces of the tie-strut can be calculated through this model. It＇s proved by the gree well with the in -place measurements, and engineering numerical example that the calculated results acan effectively simulate the whole excavation process to supply good guide lines for the practical design and construction of underground concrete diaphragm wall.

关 键 词：地下连续墙 双曲线非线性弹簧单元 有限元数值计算 基坑开挖 

分 类 号：TU473[建筑科学—结构工程]