RIC工法的大变形有限元数值分析  

Numerical Analysis of RIC Construction Technology by Finite Element Method Based on Large Deformation Theory

作　　者：徐彬[1,2] 吴军君 刘述丽[3] 孙文怀[2] 

机构地区：[1]浙江省钱塘江管理局勘测设计院．杭州310016 [2]华北水利水电学院资源与环境学院,郑州450011 [3]浙江同济科技职业学院,杭州311231

出　　处：《科技导报》2012年第6期58-61,共4页Science & Technology Review

基　　金：“十一五”国家科技支撑计划课题(2006BAB04A10)

摘　　要：快速冲去夯实RIC工法是一种填土压实施工新方法,用数值方法进行模拟和分析对工程实践有着重要的指导意义。考虑到RIC工法夯实土体过程中实际土体的变形基本属于大变形,故采用大变形几何非线性有限元法对该工法进行分析。通过应用相应的大变形动力有限元程序,对该工法加固土体的过程进行数值分析与计算,并结合一个工程实例,与实测数据进行对比,从而验证了数值分析的正确性,得出了RIC工法的影响深度和有效加固深度,最后给出了确定最佳夯击次数的方法。The RIC construction technology is a kind of new methods of foundation treatment. This paper presents a numerical analysis of the RIC method. The soil deformation is basically large in the process of using the RIC method, therefore, this paper uses the finite element method based on the large deformation theory. The influence depth, the effective reinforcement depth, and the optimal compacting count of RIC method are determined. The numerical analysis is validated by some measurements of an engineering example.

关 键 词：RIC工法 有限元 大变形 压实度 

分 类 号：TU472[建筑科学—结构工程]