| 钻孔灌注桩桩端后压浆机理及效果检测 |
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| 引用本文： | 李昌驭,赵建华,许斌,吕嘉,龚维明. 钻孔灌注桩桩端后压浆机理及效果检测[J]. 工程质量, 2005, 0(2): 46-49 |
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| 作者姓名： | 李昌驭 赵建华 许斌 吕嘉 龚维明 |
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| 作者单位： | 南京市建筑安装工程质量检测中心;东南大学土木工程学院 |
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| 摘 要： | 本文分析了传统钻孔灌注桩的工艺缺陷,阐述了后压浆机理,并结合工程实例,对桩端压浆进行了试验研究,分析了后压浆效果。同时指出,几种检测手段综合应用是检测后压浆桩压浆效果的有效方法。
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| 关 键 词： | 钻孔灌注桩 桩端后压浆 承载力试验 钻孔取芯 CT检测 |
Mechanism & Performance Test of Bored Pile with Post Grouting at Base |
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| LI Chang-yu,ZHAO Jian-hua,XU Bin,LU Jia,GONG Wei-ming. Mechanism & Performance Test of Bored Pile with Post Grouting at Base[J]. Quality of Civil Engineering and Construction, 2005, 0(2): 46-49 |
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| Authors: | LI Chang-yu ZHAO Jian-hua XU Bin LU Jia GONG Wei-ming |
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| Affiliation: | LI Chang-yu1,ZHAO Jian-hua1,XU Bin1,LU Jia,GONG Wei-ming2 |
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| Abstract: | The technique of post-grouting after construction can both improve the bearing capacity of pile and decrease the pile top subsidence obviously as well as the bearing properties of foundation pile change. The paper reveals working mechanism of post-grouting and showed the performance of post-grouting through introduction of experiments of base-grouting in super-long and big-diameter bored piles conducted in the experimental-pile research project of Su-Tong Bridge across Yangtze River and the effect of grouting is analyzed. |
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| Keywords: | bored pile post-grouting at base bearing capacity test core-drilling CT test |
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