Analysis on pile testing results of post-grouting bored pile

3rd International Conference on Energy Materials and Environment Engineering

能源学;生态环境科学

Zheng, A.R.^1,2

CCCC Tianjin Port Engineering Institute Ltd., Key Laboratory of Geotechnical Engineering, Ministry of Communications, Tianjin, China^1

Key Laboratory of Geotechnical Engineering, Tianjin

300222, China^2

关键词: Bored piles;    End resistance;    Pile shaft;    Pile testing;    Post grouting;    Sliding displacements;    Static load tests;    Surrounding soils;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/61/1/012120/pdf
DOI  :  10.1088/1755-1315/61/1/012120

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Based on static load test results, the bearing capacity of bored piles with pile-toe and pile-shaft post-grouting has been analyzed. The analysis reveals that: with post-grouting, the interface between pile and surrounding soil are strengthened and the relative sliding displacement in between is reduced; end resistance of pile is enhanced and can be mobilized at earlier stage with smaller sliding displacement. As a result, the performance of bored pile is improved with increased bearing capacity and reduced settlement.