| 长短桩处理路基不均匀沉降三维有限元分析 |
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| 引用本文： | 秦晓光,杨龙才,何太洪.长短桩处理路基不均匀沉降三维有限元分析[J].华东交通大学学报,2011,28(4):80-83. |
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| 作者姓名： | 秦晓光 杨龙才 何太洪 |
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| 作者单位： | 同济大学道路与交通工程教育部重点实验室,上海,201804 |
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| 摘 要： | 以沪宁高铁某站场改建工程为背景,为研究不同刚度桩型加固区之间产生的不均匀沉降规律,建立三维有限元模型,并通过改变桩的刚度分析其对过渡段不均匀沉降形态的影响.研究结果表明PHC桩加固区与搅拌桩加固区间存在较大沉降差,可将过渡段路基面不均匀沉降形式简化为两个相切的半余弦,余弦半径约为15m,增大桩的弹性模量对改变不均匀变形...
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| 关 键 词： | 客运专线 桩基工程 过渡段 不均匀沉降 有限元 |
Three-dimensional Finite Element Analysis of Differential Settlement of the Foundation Supported by Long and Short Piles |
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| Qin Xiaoguang,Yang Longcai,He Taihong.Three-dimensional Finite Element Analysis of Differential Settlement of the Foundation Supported by Long and Short Piles[J].Journal of East China Jiaotong University,2011,28(4):80-83. |
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| Authors: | Qin Xiaoguang Yang Longcai He Taihong |
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| Institution: | Qin Xiaoguang,Yang Longcai,He Taihong(Key Laboratory of Road and Traffic Engineering,Ministry of Education,Tongji University,Shanghai 201804,China) |
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| Abstract: | Based on reconstruction of the Shanghai-Nanjing high-speed railway yardt,he three-dimensional fi-nite element model is established to study the laws of the settlement along centerline of the foundation in the working section.The results indicate that the differential settlement between PHC pile reinforcement area and MMP pile reinforcement area is great.The settlement form of the subgrade surface could be simplified to two half-cosine tangent.The cosine radius is 15m.Increasing ES can not change the form of... |
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| Keywords: | passenger dedicated line pile foundation differential settlement finite element method |
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