Author(s)

Zhuan Wang, Jianxu Long, Zengtao Hao

Corresponding Author

Zhuan Wang

Abstract

Based on a project of high level middle pile foundation in Karst area of Guizhou, this paper carries out the self-balanced static load test on post grouting bored piles with holes dry drilling by rotary rig. Through the test and the analysis of 6 bored piles in the construction site, it is found that in Karst areas, the bearing capacity of rotary drilling bored piles improves after post-grouting; the deformation resistance capacity improves significantly.

Keywords

Bored Pile; Grouting; Self-Balanced Method