General analysis method of piled raft foundation under vertical loading

被引：0

作者：

Wang, Wei ^{[1
,2
]}

Yang, Min ^{[2
]}

机构：

[1] Shanghai Geotechnical Investigations and Design Institute, Shanghai 200002, China

[2] Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China

来源：

Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering | 2008年 / 30卷 / 01期

关键词：

Finite element method - Piles - Soil structure interactions - Stiffness;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A general analysis method of piled raft foundation under vertical loading was presented based on the results of piled raft foundation with rigid cap under the same loading condition. Four types of interaction could be considered herein, i.e., pile-soil-pile interaction, pile-soil-plate interaction, plate-soil-pile interaction and plate-soil-plate interaction. Cap of foundation was analyzed through finite element method with a rational approach to formulate Reissner-Mindlin quadrilateral element. It was mentioned that pile group could be comprised of piles with various lengths, radiis and stiffness modulis. Raft with any shape and depth could be studied accurately. The method did not involve the discretization of the soil or piles and it could be used to analyze piled raft foundation as simply as to analyze raft foundation. By comparison with the results of other methods, it was shown that the proposed method was reasonable and feasible.

引用

页码：106 / 111