引用本文:ZHU Ye-ting,ZHANG Zi-xin,YUAN Deng-ping,HUANG Xin.[en_title][J].Journal of Chongqing University (English Edition),2017,16(1):25~37
ZHU Ye-ting,ZHANG Zi-xin,YUAN Deng-ping,HUANG Xin.Three-dimensional elasto-plastic finite element analysis of a soil-pile-bridge interaction[J].Journal of Chongqing University (English Edition),2017,16(1):25~37
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Three-dimensional elasto-plastic finite element analysis of a soil-pile-bridge interaction
ZHU Ye-ting1,2, ZHANG Zi-xin3,2, YUAN Deng-ping4, HUANG Xin1,2
1.Department of Geotechnical Engineering, Tongji University, Shanghai 200092, P. R. China;2.R. China;3.Department of Geotechnical Engineering, Tongji University, Shanghai 200093, P. R. China;4.Shanghai Geotechnical Engineering Detecting Center, Shanghai 200438, P. R. China
摘要:
The soil-pile-bridge interaction of super-large pile groups is a very complex issue for the design of deep pile group foundations. In this paper, the load distribution on the pile top of a super large bridge foundation and its influential factors are analyzed comprehensively using a three-dimensional elasto-plastic finite element method. The adopted model and its input parameters are firstly verified by comparing the numerical results with the measured data of static loading tests of a single pile. Numerical analysis is then performed to investigate the load distribution and the load-settlement characteristics of super-large pile groups, and the models are verified using centrifuge laboratory model testing data. The mechanism of the interaction between pile groups and soil under different conditions is explored.
关键词:  finite element  interaction  friction pile  bridge foundation  pile groups
DOI:10.11835/j.issn.1671-8224.2017.01.003
分类号:
基金项目:Funded by the National Natural Science Foundation of China (No. 41372276)
Three-dimensional elasto-plastic finite element analysis of a soil-pile-bridge interaction
ZHU Ye-ting1,2, ZHANG Zi-xin3,2, YUAN Deng-ping4, HUANG Xin1,2
1.Department of Geotechnical Engineering, Tongji University, Shanghai 200092, P. R. China;2.R. China;3.Department of Geotechnical Engineering, Tongji University, Shanghai 200093, P. R. China;4.Shanghai Geotechnical Engineering Detecting Center, Shanghai 200438, P. R. China
Abstract:
The soil-pile-bridge interaction of super-large pile groups is a very complex issue for the design of deep pile group foundations. In this paper, the load distribution on the pile top of a super large bridge foundation and its influential factors are analyzed comprehensively using a three-dimensional elasto-plastic finite element method. The adopted model and its input parameters are firstly verified by comparing the numerical results with the measured data of static loading tests of a single pile. Numerical analysis is then performed to investigate the load distribution and the load-settlement characteristics of super-large pile groups, and the models are verified using centrifuge laboratory model testing data. The mechanism of the interaction between pile groups and soil under different conditions is explored.
Key words:  finite element  interaction  friction pile  bridge foundation  pile groups
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