| 桩端压力注浆钻孔灌注桩承载力分析 |
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| 作者单位： | 内蒙古科技大学建筑与土木工程学院 包头014010(冯玉芹)，北京司空建筑设计咨询有限公司 北京100088(陈晓东) |
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| 摘 要： | 通过对某高层建筑桩基工程钻孔灌注桩采用桩端压力注浆的工程实例,利用静载荷试验、沉降观测结果及确定单桩竖向承载力设计值等多种方法分析,表明桩端压力注浆钻孔灌注桩在中、粗砂混合层中的承载力得到显著的提高。
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| 关 键 词： | 钻孔灌注桩 桩端压力注浆 静载荷试验 承载力 |
ANALYSIS OF BEARING CAPACITY OF BORED PILES WITH PRESSURE GROUTINGS AT THEIR TIPS |
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| Authors: | Feng Yuqin |
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| Abstract: | It has been shown that when the bored piles with pressure groutings at their tips are used in a mixed layer of medium and coarse sands,their bearing capacities would be increased evidently,according to the pile foundation of a tall building,where bored piles are used,using static loading test,the results of settlement observations as well as the determination of designed value of vertical bearing capacity for a single pile. |
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| Keywords: | bored pile pressure grouting at pile tip static loading test carrying capacity |
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