Prediction of Grouting Penetration Height Along the Shaft of Base Grouted Pile

Journal of Marine Science and Engineering

Kai Fang¹  Yue Qiu¹  Yunliang Tan¹  Tongbin Zhao¹ 

[1] Department of mechanics, Shandong University of Science and Technology, Qingdao 266590, China;

关键词: grouting penetration height;    grouted pile;    layered soils;    pile foundation;   

DOI  :  10.3390/jmse7070212

来源: DOAJ

【 摘 要 】

Post-pressure grouting is an effective method to improve bearing capacity of ordinary bored cast-in-situ piles. The migration of the grout along the pile side is regarded as an important mechanism responsible for the improvement of the pile capacity. Research into the penetration height of the grout is of great important in evaluating the behavior of base grouted piles. In this paper, a prediction method of grouting penetration height along the shaft of the base grouted pile was proposed. Considering the balance and losses of the grout pressure during grouting, an iterative procedure was given to determine the penetration height of the grout in layered soils. Field test results were also provided to indicate the validity of the proposed method.

【 授权许可】

Unknown