| 分层地基中隧道开挖对邻近刚性桩筏基础竖向影响分析 |
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| 引用本文： | 木林隆,黄茂松,王卫东.分层地基中隧道开挖对邻近刚性桩筏基础竖向影响分析[J].岩土工程学报,2011,33(7):1082-1090. |
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| 作者姓名： | 木林隆 黄茂松 王卫东 |
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| 作者单位： | (1.同济大学地下建筑与工程系，上海200092 ; 2.同济大学岩土及地下工程教育部重点实验室，上海200092 ; 3. 华东建筑设计研究院，上海200002 ) |
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| 基金项目： | 国家杰出青年科学基金资助项目(50825803); 教育部高等学校博士点基金项目(20070247066); 上海市科委重点科技项目(08201200902) |
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| 摘 要： | 基于两阶段分析方法：第一阶段采用Loganathan方法计算隧道开挖引起的土体自由场位移，第二阶段采用层状地基中弹性理论法，计算桩和土，桩和桩之间的相互作用，并考虑刚性筏板对桩基的约束作用，提出了一套能够分析层状地基中隧道开挖对刚性筏板群桩基础竖向影响的解析方法。将计算结果与离心试验结果及现有方法计算结果进行对比，得到了较好的一致性，验证了其正确性。并首次对层状地基中桩筏基础承载特性进行了分析，讨论了桩基变形对遮拦效应的削减作用，结果表明此方法意义明确，层状地基模型更符合工程实际情况，适于推广使用。
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| 关 键 词： | 被动桩 隧道开挖 桩筏基础 弹性理论法 层状地基 |
| 收稿时间： | 2010-02-21 |
Vertical responses of capped pile foundations to ground movements induced by tunneling |
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| MU Lin-long,HUANG Mao-song,WANG Wei-dong.Vertical responses of capped pile foundations to ground movements induced by tunneling[J].Chinese Journal of Geotechnical Engineering,2011,33(7):1082-1090. |
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| Authors: | MU Lin-long HUANG Mao-song WANG Wei-dong |
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| Affiliation: | (1. Department ofGeotechnical Engineering,Tongji University ,Shanghai 200092, China;2. Key Laboratory of Geotechnical and Underground Engineering of Ministy of Education,Tongji University ,Shanghai 200092, China; 3. East China Architectural Design& Research Institute, Shanghai 200002, China) |
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| Abstract: | A simplified method of numerical analysis is developed to estimate the settlement and load distribution of capped pile foundations subjected to ground movements induced by tunneling in layered soil based on a two-stage method.In this method,the Loganathan analytical solution is used to estimate the free-field ground movements induced by tunneling at the first stage.At the second stage,composing the ground movement to the pile,the vertical movements governing equilibrium equations of piles are solved by fini... |
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| Keywords: | passive pile tunneling pile-raft foundation elastic theory method layered soil foundation |
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