| 嵌岩抗拔桩承载性状研究 |
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| 引用本文： | 李森,唐孟雄.嵌岩抗拔桩承载性状研究[J].岩土工程技术,2008,22(2):84-87. |
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| 作者姓名： | 李森 唐孟雄 |
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| 作者单位： | 1. 中山大学工学院,广东广州,510275
2. 广州市建筑科学研究院,广东广州,510440 |
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| 摘 要： | 嵌岩桩抗拔承载性状的研究目前仍较缺乏。运用灰色系统理论和非线性有限元方法，探讨了桩径、桩长、嵌岩深度对嵌岩桩抗拔承载眭状的影响规律。结果表明：桩径对嵌岩桩抗拔承载力的影响最大，嵌岩深度次之，桩长最小；桩径和嵌岩深度在一定范围内与桩抗拔割线刚度呈非线性递增关系，桩长则与之呈非线性递减关系。
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| 关 键 词： | 嵌岩抗拔桩 承载胜状 灰色关联分析 轴向抗拔刚度 有限元分析 |
| 文章编号： | 1007-2993(2008)02-0084-04 |
| 修稿时间： | 2008年1月11日 |
Study on Anti-draw Bearing Properties of Rock-socketed Pile |
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| Li Sen,Tang Mengxiong.Study on Anti-draw Bearing Properties of Rock-socketed Pile[J].Geotechnical Engineering Technique,2008,22(2):84-87. |
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| Authors: | Li Sen Tang Mengxiong |
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| Institution: | Li Sen, Tang Mengxiong (1. College of Engineering ,Sun Yat-sen University, Guangzhou Guangdong 510275; 2. Guangzhou Institute of Building Science, Guangzhou Guangdong 510440 China) |
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| Abstract: | There has been not enough study on anti-draw bearing properties of rock-socketed pile. The influence of pile diameter, pile length and socketed length on uplift bearing properties of rock-socketed pile is analyzed by using methods of grey system theory and non-linear finite element analysis. The results indicate that pile diameter has the strongest influence on uplift hearing capacity of rock-socketed pile, on which socketed length has much lesser influence while pile length has the weakest influence. And pile diameter and rock-socketed length shows a non-linear positive relationship with axial uplift secant stiffness of pile in certain extent, and pile length shows a non-linear negative relationship. |
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| Keywords: | anti-draw rock-socketed pile bearing property grey correlation analysis axial anti-draw stiffness finite element analysis |
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