Analysis on the load transfer function of post-grouting bored pile based on self-balanced method

被引：0

作者：

Wan, Zhihui ^{[1
,2
]}

Dai, Guoliang ^{[1
,2
]}

Gong, Weiming ^{[1
,2
]}

Chen, Haijun ^{[3
]}

Chen, Xiangyang ^{[3
]}

机构：

[1] Key of Laboratory for RC and PRC Structure of the Ministry of Education, Southeast University, Nanjing,210096, China

[2] School of Civil Engineering, Southeast University, Nanjing,210096, China

[3] Zhejiang Provincial Institute of Communications Planning, Design & Research, Hangzhou,310006, China

来源：

Tumu Gongcheng Xuebao/China Civil Engineering Journal | 2017年 / 50卷 / 08期

关键词：

Concrete construction - Load testing - Transfer functions - Grouting - Mortar - Piles;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Based on the data analysis of self-balanced pile testing in the actual projects, this work presents different load transfer function models for upper and lower pile sections before and after grouting according to characteristics of self-balanced testing technology. Furthermore, the Mindlin displacement solution mixed with load transfer method is used to consider the influence of soil continuity and analyze the bearing characteristics. Finally, a case study is performed to demonstrate the validity of the proposed models. The results indicate that these proposed load transfer function models are correct and reasonable, and the model of post-grouting pile is more consistent with the actual engineering. Moreover, the comparison also implies that the soil continuity of super-long pile has a significant influence on bearing capacity and settlement. Compared with the case of ignoring soil continuity, the displacement of pile head will be larger and safer when considering the soil continuity effect. © 2017, Editorial Office of China Civil Engineering Journal. All right reserved.

引用

页码：98 / 104