Global Geology 2012, 15(1) 42-47 DOI:     ISSN: 1673-9736 CN: 22-1371/P

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composite pile foundation
bridge foundation
finite element
simulation analysis
LI Guangxing1
WANG Rusheng1
WANG Lei 1 and WANG Jinsong 1
Article by LI Guangxing1
Article by WANG Rusheng1
Article by 2
Article by WANG Lei 1 and WANG Jinsong 1

Parameter analysis of composite pile foundation in bridge foundation

LI Guangxing1, WANG Rusheng1, 2, WANG Lei 1 and WANG Jinsong 1

1. College of Construction Engineering,Jilin University,Changchun 130061,China; 2. Key Laboratory of Earth Information Detection Equipment,Ministry of Education,Changchun 130061,China


In the current theory of bridge foundation design,all of the loads above the cap are loaded by the pile,and the bearing capacity of the soil among piles is not taken into account. In order to analyze the bearing capacity of the soil among piles in bridge pile foundation,a model of pile foundation is established based on a bridge foundation which is under construction,and by the finite element analysis software ANSYS. According to the results of finite element analysis ( FEA) and current bridge foundation design theory,a feasible composite pile foundation which can be applied in the design of bridge foundation,is recommended. Additionally,a number of modifications are made to the original design. It was confirmed that these modifications derived from numerical simulations can improve the performance of the foundation.

Keywords composite pile foundation   bridge foundation   finite element   simulation analysis  
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