Experimental study on lateral bearing behavior of post-grouting super-long bored pile

被引：0
|
作者：
Li H. [1 ,2 ]
Tong L. [1 ,2 ]
Liu S. [1 ,2 ]
Gu Q. [3 ]
Zhu L. [4 ]
机构：
[1] Institute of Geotechnical Engineering, Southeast University, Nanjing
[2] Jiangsu Key Laboratory of Urban Underground Engineering and Environmental Safety, Southeast University, Nanjing
[3] Jiangsu Provincial Construction Drawing Examination & Verification Center, Nanjing
[4] Jingjiang Binjiang New City Investment & Development, Ltd, Jingjiang
来源：
| 1600年 / Science Press卷 / 37期
关键词：
Bored pile; Field test; Lateral capacity; Post-grouting; Soil resistance;
D O I：
10.14006/j.jzjgxb.2016.06.025
中图分类号：
学科分类号：
摘要：
As a kind of pile foundation enhancement technology, the post-grouting bored pile has been used in many large projects, but there has been few research about its horizontal load-bearing characteristics. Based on the case of post-grouting super-long pile in deep soil layer under horizontal load, combined with the engineering example, its bearing rule was studied comprehensively and systematically. Through the horizontal static field loading test, the relationship between the horizontal force and displacement, rotation angle, residual deformation of pile top was obtained, and the pile body internal force and soil resistance distribution characteristics were analyzed. Comparison of the different critical bearing capacities of two cases whether using post-grouting technology or not was made. The results show that the standard method used to determine the test pile lateral critical bearing capacity and ultimate bearing capacity is reasonable and accurate. The relationship between displacement and horizontal resistance ratio is nonlinear. Post-grouting technology can improve bored pile lateral critical bearing capacity by 20%. © 2016, Editorial Office of Journal of Building Structures. All right reserved.
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页码：204 / 211
页数：7
相关论文
共 11 条
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