| 自重湿陷性黄土场地桩的负摩阻力 |
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| 引用本文： | 马侃彦,张继文,王东红.自重湿陷性黄土场地桩的负摩阻力[J].岩土工程技术,2009,23(4):163-166,177. |
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| 作者姓名： | 马侃彦 张继文 王东红 |
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| 作者单位： | 1. 南广铁路有限责任公司,广西南宁,530022
2. 机械工业勘察设计研究院,陕西西安,710043 |
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| 基金项目： | 试验研究过程中得到张苏民勘察大师、张炜勘察大师指导;参加试验工作的还有刘争宏、钱春宇、石怀清、万再新等,一并致谢! |
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| 摘 要： | 通过对郑州-西安客运专线的关中某地钻孔灌注桩在预湿和后湿状态下的静载试验和同步进行的桩身应力测试，探讨了自重湿陷性黄土中桩侧负摩阻力的发生和发展过程，中性点位置的变化过程及桩侧阻力的发挥规律等，对自重湿陷性黄土中桩侧负摩阻力的理论研究及其工程应用具有重要的参考价值。
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| 关 键 词： | 自重湿陷性黄土 钻孔灌注桩 负摩阻力 中性点 |
Negative Skin Friction of pile in Self-weight Collapse Loess Site |
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| Ma Kanyan,Zhang Jiwen,Wang Donghong.Negative Skin Friction of pile in Self-weight Collapse Loess Site[J].Geotechnical Engineering Technique,2009,23(4):163-166,177. |
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| Authors: | Ma Kanyan Zhang Jiwen Wang Donghong |
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| Institution: | Ma Kanyan, Zhang Jiwen, Wang Donghong(1. Limited Liability Company of Nan-Guang Railway , Nanning, Guang xi 530022, China; 2. China Jikan Geotechnical Institute, Xi＇ an 710043, China) |
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| Abstract: | On the basis of vertical static loading test and stress test of bored piles shaft,which built in some places in Guanzhong district along Zhengzhou-Xi'an Railyway Passenger Transportation special Line,under prewetting and afterwetting in self-weight collapse loess, the paper discusses the generating and developing procedure of negative skin friction of pile,and changing procedure of neutral point position, and the action law of lateral friction resistance. The theoretical study and engineering application on negative skin friction of pile in self-weight collapse loess can be quite reference value. |
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| Keywords: | self-weight collapse loess bored piles negative skin friction neutral point |
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