| 散体材料桩复合地基沉降计算方法的研究 |
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| 引用本文： | 孙林娜,龚晓南.散体材料桩复合地基沉降计算方法的研究[J].岩土力学,2008,29(3):846-848. |
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| 作者姓名： | 孙林娜 龚晓南 |
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| 作者单位： | 1. 青岛理工大学土木学院,青岛,266033;浙江大学,岩土工程研究所,杭州,310027
2. 浙江大学,岩土工程研究所,杭州,310027 |
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| 摘 要： | 对散体材料桩复合地基桩与桩间土的相互作用进行研究,试验表明:散体材料桩在一定深度内发生鼓胀破坏,因此,将复合地基分为鼓胀段、非鼓胀段和下卧层3段进行沉降计算.假定桩-土协调变形,利用弹性力学空间问题理论推导出散体材料桩复合地基的沉降计算公式,为按沉降控制的复合地基优化设计提供计算依据.算例分析表明,所提方法的计算结果与实测值基本吻合.
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| 关 键 词： | 散体材料桩 复合地基 沉降 散体材料桩复合地基 复合地基沉降 计算方法 研究 piles material discrete composite foundation method of settlement calculation 实测值 结果 分析表 算例 计算依据 优化设计 沉降控制 计算公式 问题理论 力学空间 |
| 文章编号： | 1000-7598-(2008)03-0846-03 |
| 收稿时间： | 2006-04-18 |
| 修稿时间： | 2006年4月18日 |
Research on settlement calculation method of composite foundation of discrete material piles |
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| SUN Lin-na,GONG Xiao-nan.Research on settlement calculation method of composite foundation of discrete material piles[J].Rock and Soil Mechanics,2008,29(3):846-848. |
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| Authors: | SUN Lin-na GONG Xiao-nan |
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| Institution: | 1. School of Civil Engineering, Qingdao Technological University, Qingdao 266033, China; 2. Institute of Geotechnical Engineeing, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | The interaction between pile and soil of discrete material piles composite foundation is studied. Experimental investigation indicates that the pile is damaged under some depth to the top. So the composite foundation is divided into 3 different sections: expanding, un-expanding and substratum. According to deformation compatibility condition, a new method to calculate the settlement of the composite foundation is deduced by elastic mechanics. An example is given; and the calculation result is consistent well with the on-the-spot monitoring result. |
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| Keywords: | discrete material piles composite foundation settlement |
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