| DX桩与后压浆钻孔灌注桩现场试验研究 |
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| 引用本文： | 刘春刚,柴小兵,欧阳义,贺德新. DX桩与后压浆钻孔灌注桩现场试验研究[J]. 中国工程科学, 2012, 14(1): 80-85 |
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| 作者姓名： | 刘春刚 柴小兵 欧阳义 贺德新 |
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| 作者单位： | 1. 北京交通大学土木建筑工程学院,北京,100044
2. 北京中阔地基基础技术有限公司,北京,100097 |
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| 基金项目： | 铁道部重点科技项目（2009J010-F） |
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| 摘 要： | 对DX桩进行了现场竖向抗压静载试验，并与后压浆直孔灌注桩进行了比较。结果表明，DX桩和后压浆钻孔灌注桩都可以提高桩的承载力和控制桩的沉降，4根试验桩的试验效果相差不大，但DX桩能以桩径小、桩长短满足大承载力的桩基，达到极限承载力时，混凝土的单方承载力是后压浆钻孔灌注桩的1.5倍，可以减少工程材料，降低工程造价；且DX桩施工工艺更简单，能加快施工进度。
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| 关 键 词： | DX桩；静载荷试验；承载力；沉降 |
| 收稿时间： | 2011-10-15 |
| 修稿时间： | 2011-10-21 |
Study of in situ test to DX pile and post grouting bored pile |
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| Liu Chungang,Chai Xiaobing,Ouyang Yi and He Dexin. Study of in situ test to DX pile and post grouting bored pile[J]. Engineering Science, 2012, 14(1): 80-85 |
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| Authors: | Liu Chungang Chai Xiaobing Ouyang Yi He Dexin |
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| Affiliation: | 1.School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China;2.Beijing Zhongkuo Foundation Technology Co.,Ltd,Beijing 100097,China) |
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| Abstract: | The in situ vertical resisting compression static test of DX pile is made and it is compared with post grouting bored pile. The results indicate that DX pile and post grouting bored pile can enhance capacity and control settlement effectively;effect of four test piles is not quite different, but the DX pile is of smaller diameter and shorter length which can meet large capacity; its concrete bearing capacity of per cubic meter is 1.5 times larger than that of post grouting bored pile; DX pile can reduce engineering materials to lower project cost and speed up the construction progress. |
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| Keywords: | DX pile static load test bearing capacity settlement |
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