山东建筑大学学报2017，Vol.32Issue(1)：47-54,8.
水平荷载下地下连续墙—桩组合基础数值分析
Numerical analysis of diaphragm wall-piles combined foundation under lateral loading
摘要
Abstract
Based on the defects of diaphragm wall with a large material,a research is made on a new type of foundation forms,diaphragm wall-piles combined foundation to provide a theoretical basis for the development of diaphragm wall.For further analysis of the horizontal bearing characteristics of diaphragm wall-piles combined foundation under lateral loading,by using the finite difference software FLAC3D to make simulation,through the research on displacement and moment curve,the paper analyzes the results of diaphragm walls-piles combined foundation under the effect of horizontal force to discuss deformational and stress variation under the influence of factors the basis of forces at different levels,different length ratio,with or without vertical forces,modulus of elasticity,friction angle,cohesion,etc.The results show that Load rating and wall pile length ratio on the level of the composite foundation deformation and internal force changes affect sensitivity,and length of the diaphragm wall-piles design is more reasonable when the ratio is 4:6.Under the top half part of the combined foundation is the position assumed most of the horizontal deformation and internal force change.The force characteristics of the new combined foundation conform to the new design concept of variable stiffness that at the position of large deformation stiffness increases and deformation decreases,and at the position of small deformation the stiffness reduces;Two parts of the combined foundation needs to be considered about the adverse effects.关键词
地下连续墙—桩组合基础/水平荷载/数值模拟Key words
diaphragm wall-pile combined foundation/lateral loading/numerical analysis分类
建筑与水利引用本文复制引用
刘聪,魏焕卫,张伟,杨庆义..水平荷载下地下连续墙—桩组合基础数值分析[J].山东建筑大学学报,2017,32(1):47-54,8.基金项目
2014年山东建筑大学横向课题项目(山东电力工程咨询院有限公司,K22014016) （山东电力工程咨询院有限公司,K22014016）
