Finite element analysis on bearing capacity of post-grouting bored pile with the HS-small model and the HS model

2018 International Conference on Civil and Hydraulic Engineering

土木建筑工程;水利工程

Zheng, Airong^1

CCCC Tianjin Port Engineering Institute Ltd., Key Laboratory of Geotechnical Engineering, Ministry of Communications, Key Laboratory of Geotechnical Engineering, Tianjin

300222, China^1

关键词: Bored piles;    Pile and soil interaction;    Pile shaft;    Post grouting;    Small-strain stiffness;    Static load tests;    Surrounding soils;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/189/2/022087/pdf
DOI  :  10.1088/1755-1315/189/2/022087

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Based on static load test results, with consideration of the small-strain stiffness characteristic of soils, the bearing capacity of bored piles with pile-toe and pile-shaft post-grouting have been analyzed using HS-small model and HS model of Plaxis program. The analysis reveals that: the small-strain stiffness of soil is not negligible in analyzing pile and soil interaction; with post-grouting, the interface between pile and surrounding soil are strengthened and the performance of bored pile is improved with increased bearing capacity and reduced settlement.