考虑基础与地基相互作用的复合地基沉降和基础内力计算  

CALCULATION OF THE COMPOSITE GROUND′S SETTLEMENT AND FOUNDATION′S INTERNAL FORCE IN VIEW OF THE INTERACTION BETWEEN THEM

作　　者：余斌[1] 李广信[1] 吴新春[2] 

机构地区：[1]清华大学水利水电工程系,北京100084 [2]中航勘察设计研究院,北京100086

出　　处：《工业建筑》2003年第5期39-42,共4页Industrial Construction

基　　金：国家自然科学基金资助项目 (批准号 :5 0 2 790 14 )

摘　　要：基础与地基间的相互作用是影响基础内力计算的关键问题 ,目前尽管各种数值计算程序已相当普及 ,但计算参数的选取仍然没有得到很好的解决。通过采用现有的三维有限元程序 ,使用常规岩土工程勘察报告提供的压缩模量代替变形模量进行分析 ,并且将局部加强、双层地基与规范中沉降计算方法的结果进行了比较 ,得到了比较合理的沉降及基础内力分布 ,完全可满足工程需要。It is very important for calculating the internal force of foundation to analyze the interaction of foundation and ground.Now all kinds of FEM programs are very popular,but it isn′t resolved well to decide the parameters of soil.In the paper,3D FEM program is used to analyze the interaction of foundation and ground,the modulus of deformation being replaced by the modulus of compressibility,and the result of part\|strengthened ground is compared with those of double\|layer ground and the method in specification.The result is reasonable and meets the need of construction.

关 键 词：复合地基 地基沉降 基础内力 变形模量 压缩模量 沉降 

分 类 号：TU433[建筑科学—岩土工程]