| 大面积填土对邻近桩基影响的分析与技术措施 |
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| 引用本文： | 吴江斌,王卫东,Wang Weidong.大面积填土对邻近桩基影响的分析与技术措施[J].地下空间与工程学报,2010,6(3). |
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| 作者姓名： | 吴江斌 王卫东 Wang Weidong |
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| 作者单位： | 华东建筑设计研究院有限公司地基基础与地下工程设计研究所上海,200002 |
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| 基金项目： | 上海市青年科技启明星项目，上海市科委重点资助项目 |
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| 摘 要： | 大面积填土对桩基的影响主要表现为负摩擦和侧向受荷的综合效应。以南京世茂外滩新城大面积高填土为背景工程,采用数值分析方法对填土作用下单桩的变形与受力性状进行了理论分析,并就本工程填土对结构和桩的影响进行了整体平面有限元分析。提出了结构架空后填土、路堤桩地基处理、利用基坑围护桩隔离、增加边桩刚度、采用轻质堆填材料等一系列技术措施,取得了良好的效果,并采用数值分析方法对技术措施的有效性进行了评价。
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| 关 键 词： | 填土 桩基 负摩擦力 被动桩 技术措施 |
Analysis of and Engineering Measures for the Impact of Large Area Fill on Adjacent Piles |
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| Wu Jiangbin,Li Jinjun,Wang Weidong.Analysis of and Engineering Measures for the Impact of Large Area Fill on Adjacent Piles[J].Chinese Journal of Underground Space and Engineering,2010,6(3). |
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| Authors: | Wu Jiangbin Li Jinjun Wang Weidong |
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| Affiliation: | Wu Jiangbin,Li Jinjun,Wang Weidong(Geotechnical Engineering and Underground Structure Department of East China ArchitectureDesign Institute,Shanghai 200002,China) |
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| Abstract: | The impact of large area fill on the piles is often expressed as the combined effect of negative friction and lateral load.The work characteristics of piles under fill are studied by numerical analysis.Then,the deformation and force of the pile in Nanjing Shimao Bund hotel project were analyzed by finite element method.The analysis results indicate that the pile and structure will result in a larger deformation and internal force,and the corresponding solutions were put forward,such as the setting pile and ... |
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| Keywords: | fill pile negative friction passive pile engineering measures |
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