| 多桩型复合地基的载荷传递机理研究 |
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| 引用本文： | 崔溦,闫澍旺,周宏杰.多桩型复合地基的载荷传递机理研究[J].岩土力学,2005,26(2):290-294. |
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| 作者姓名： | 崔溦 闫澍旺 周宏杰 |
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| 作者单位： | 天津大学,建工学院,天津,300072 |
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| 摘 要： | 针对山区沟谷软基的特点，采取多桩型复合地基进行处理是一个创新。利用有限元仿真手段，并结合现场试验结果，对多桩型复合地基的载荷传递机理进行了分析。分析结果表明，桩身上部存在一定范围的负摩阻力区，最大轴力位于桩顶以下；对比单一桩型复合地基，多桩型复合地基具有更好的基础完整性，传递载荷的能力更强，可以很好地满足特殊地基条件下的承载力和变形要求。
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| 关 键 词： | 多桩型 复合地基 荷载传递 数值分析 现场试验 |
| 文章编号： | 1000-7598-(2005)02-0290-05 |
| 收稿时间： | 2003-11-05 |
| 修稿时间： | 2003年11月5日 |
Load transfer behavior of multi-type-pile composite foundation |
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| CUI Wei,YAN Shu-wang,ZHOU Hong-jie.Load transfer behavior of multi-type-pile composite foundation[J].Rock and Soil Mechanics,2005,26(2):290-294. |
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| Authors: | CUI Wei YAN Shu-wang ZHOU Hong-jie |
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| Institution: | School of Civil Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | Based on the main feature of soft ground in mountainous area, taking the measure of multi-type-pile composite foundation to improve is an innovation. In combination with field test, the load transfer behavior of multi-type-pile composite foundation has been analyzed by use of FEM. The results show that there is a zone of negative friction in pile upside and the maximum axial force is below the top of pile. Compared with single-type-pile composite foundation, the multi-type-pile composite foundation is more whole and possess stronger capacity of load transfer. It can satisfy the requirements of load bearing capacity and deformation under special foundation conditions. |
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| Keywords: | multi-type- pile composite foundation behavior of load transfer field test numerical analysis |
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