| 人工挖孔扩底桩的承载力试验研究 |
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| 引用本文： | 王志玲,李明,李民生.人工挖孔扩底桩的承载力试验研究[J].郑州大学学报(工学版),1998(3). |
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| 作者姓名： | 王志玲 李明 李民生 |
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| 作者单位： | 郑州工业大学土建系，河南省教委 |
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| 摘 要： | 介绍了某工程中人工挖孔扩底桩的竖向静载荷试验情况，揭示了其承载力严重不足的原因。试验结果表明，扩底桩的承载力不仅与桩端尺寸有关，而且还与桩端土的状态有关，土质越软，极限承载力越小。因此，在较软弱的地基上，不宜采用扩大桩端尺寸的办法来提高承载力。
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| 关 键 词： | 扩底桩 极限承载力 桩端阻力 |
Loading Test of Man-power Digging Pedestal Pile |
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| Wang Zhiling,Li Ming,Li Minsheng.Loading Test of Man-power Digging Pedestal Pile[J].Journal of Zhengzhou University: Eng Sci,1998(3). |
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| Authors: | Wang Zhiling Li Ming Li Minsheng |
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| Affiliation: | Wang Zhiling Li Ming * Li Minsheng (Zhengzhou University of Technology) *(Education Committee of Henan) |
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| Abstract: | The vertical loading test of man-power digging pedestal pile is discussed through a construction project in this paper, and the reasons for insufficient bearing capacity are analysed. The loading test results show that the ultimate bearing capacity is related with not only its size of the pile tip,but also the state of bearing stratum at pile tip. In conclusion, it is unreasonable to try to improve the ultimate bearing capacity by enlarging the size of pile tip in soft ground. |
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| Keywords: | pedestal pile ultimate bearing capacity pile tip resistance |
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