 |
 |
Simplified Nonlinear Analysis Methods for Vertically Loaded Piles and Piled Raft In Layered Soil
Zheng Zhang Graduate Student, Bridge Science Research Institute, Civil
Engineering, Cai-Liang Huang Professor, Bridge Science Research Institute, Civil Engineering, Zhe Zhang Professor, Bridge Science Research Institute, Civil Engineering,
| |
|
ABSTRACT |
The load transfer matrixes of displacement and axial force for single piles in elastic state and elastic-plastic state in layered soil are derived based on the Winkler model, and the simplified nonlinear analysis methods for vertical displacement and internal force of single pile are presented. The conventional pile-pile interaction factor is modified through considering the shielding effect between the passive pile and the near-pile soil in pile group. The modified factor is applied to the nonlinear analysis of pile group and piled raft foundation with rigid cap. For considering the layering property of soil and the nonlinearity of pile-soil interaction, the computing model well expresses the actual behavior of soil. The computed results are compared with the results of finite element method and field tests, the conclusion can be drawn that the present methods are correct and can be used in the analysis of actual engineering.
Keywords: pile group; piled raft foundation; layered soil; pile-pile interaction; shielding effect.
Get the entire paper (pdf)
Go back to the TOC
