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基坑开挖与临近桩基相互作用分析 被引量:134

NUMERICAL ANALYSIS OF PILE RESPONSE DUE TO UNSUPPORTED EXCAVATION-INDUCED LATERAL SOIL MOVEMENT
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摘要 基坑开挖时临近建筑物的桩基础将受到开挖引起土体位移的作用, 导致桩身产生附加应力、弯矩和侧向位移。文中采用三维弹塑性有限元法, 模拟无支撑基坑开挖与临近桩基的相互作用。对比分析了临近桩基对基坑开挖所引起土体变形场的影响, 并讨论了基坑的空间效应、开挖深度、支护墙刚度、桩基和基坑距离、桩基刚度和桩头约束条件等因素对临近桩基附加侧向位移和弯矩的影响, 得出了一些有意义的结论, 可为分析基坑开挖对临近桩基影响时提供一定的理论指导。 In this paper,three-dimensional elasto-plastic finite-element method is employed to study pile response due to unsupported excavation-induced soil movements. Influences of various parameters on pile response are investigated, including three dimensional effect of excavation, excavation depth, diaphragm wall stiffness, distances between diaphragm wall and pile, pile stiffness and pile-head constraint condition.
出处 《土木工程学报》 EI CSCD 北大核心 2005年第4期91-96,共6页 China Civil Engineering Journal
基金 上海市科委重点资助基础研究课题 (02DJ14062) 教育部高等学校博士学科点专项科研基金资助项目 (20020247003)
关键词 基坑开挖 桩基 相互作用 有限元法 excavation pile foundation interaction finite-element method
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参考文献9

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二级参考文献8

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