| 柔性基础下刚性桩复合地基沉降分析 |
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| 引用本文： | 仇亮,朱宁.柔性基础下刚性桩复合地基沉降分析[J].岩土力学,2007,28(9):1964-1968. |
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| 作者姓名： | 仇亮 朱宁 |
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| 作者单位： | 河海大学,岩土工程研究所,南京,210098 |
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| 摘 要： | 以剪切位移法为基础,假定桩周摩阻力与桩-土相对位移之间为弹塑性关系,推导了柔性基础下刚性桩复合地基的沉降计算公式;通过算例,探讨了桩顶沉降、桩身应力、桩周摩阻力、中性层等分布规律,并将中性层位置及桩端应力等计算结果与有限元及差分计算结果比较,得到了相一致的结论,证明了所采用方法的正确性。
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| 关 键 词： | 刚性桩复合地基 剪切位移法 沉降 |
| 文章编号： | 1000-7598-（2007）09-1964-05 |
| 收稿时间： | 2005-09-19 |
| 修稿时间： | 2005-09-19 |
Settlement analysis of composite foundation with rigid piles under flexible ground |
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| QIU Liang,ZHU Ning.Settlement analysis of composite foundation with rigid piles under flexible ground[J].Rock and Soil Mechanics,2007,28(9):1964-1968. |
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| Authors: | QIU Liang ZHU Ning |
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| Institution: | Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China |
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| Abstract: | A simplified analytical method is presented for nonlinear analysis of the behavior of composite foundation with rigid piles.An elastoplastic relationship between the shaft shear stress and the relative shaft displacementsis adopted.The development of settlement,skin friction,stress and neutral plane on piles is investigated through the proposed approach.Comparisons of the load-settlement responses the finite element and difference calculation methods are given to demonstrate the effectiveness and accuracy of the proposed analytical method. |
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| Keywords: | composite foundation with rigid piles shear displacement method settlement |
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