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复杂条件下基坑开挖对周边环境变形影响的数值模拟分析

冯晓腊, 熊宗海, 莫云, 庞建成

冯晓腊, 熊宗海, 莫云, 庞建成. 复杂条件下基坑开挖对周边环境变形影响的数值模拟分析[J]. 岩土工程学报, 2014, 36(zk2): 330-336. DOI: 10.11779/CJGE2014S2058
引用本文: 冯晓腊, 熊宗海, 莫云, 庞建成. 复杂条件下基坑开挖对周边环境变形影响的数值模拟分析[J]. 岩土工程学报, 2014, 36(zk2): 330-336. DOI: 10.11779/CJGE2014S2058
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FENG Xiao-la, XIONG Zong-hai, MO Yun, PANG Jian-chen. Numerical simulation and analysis of surrounding environment deformation influenced by excavation of foundation pits under complex conditions[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(zk2): 330-336. DOI: 10.11779/CJGE2014S2058
Citation: FENG Xiao-la, XIONG Zong-hai, MO Yun, PANG Jian-chen. Numerical simulation and analysis of surrounding environment deformation influenced by excavation of foundation pits under complex conditions[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(zk2): 330-336. DOI: 10.11779/CJGE2014S2058
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复杂条件下基坑开挖对周边环境变形影响的数值模拟分析  English Version

  • 1. 中国地质大学（武汉）工程学院,湖北 武汉430074;
    2. 武汉丰达地质工程有限公司,湖北 武汉 430074;
    3. 武汉华中岩土工程有限责任公司,湖北 武汉 430074

基金项目: 武汉市建设科研项目（201226）
详细信息
    作者简介:

    冯晓腊(1964- ),男,教授,主要从事水文地质与工程地质、岩土力学与工程等教学、科研及实际工程工作。E-mail: fxlfd@163.com。

Numerical simulation and analysis of surrounding environment deformation influenced by excavation of foundation pits under complex conditions

  • 1. Faculty of Engineering, China University of Geosciences, Wuhan 430074, China;
    2. Wuhan Fengda Geological Engineering Ltd., Wuhan 430074, China;
    3. Wuhan Huazhong Geotechnical Engineering Ltd., Wuhan 430074, China

摘要

    摘要
  • 摘要: 以武汉老铺片商业及住宅项目深基坑工程为背景,采用有限元软件PLAXIS对其进行了基坑开挖全过程的数值模拟分析,结合模拟计算结果分析了复杂条件下基坑支护结构体系及周边环境的受力、变形情况。数值模拟计算及实测结果表明：支护结构、周边建（构）筑物及土体的变形均满足规范关于变形控制的要求,证明采用PlAXIS HS模型能够较好的完成复杂条件下基坑开挖对周边环境变形影响的数值模拟分析,同时也证明本工程采用的支护及半逆作施工方法,能够对复杂条件下基坑开挖对周边环境变形的影响起到有效控制作用。
    Abstract: For the deep foundation pit of Laopupian Commercial and Residential Building, the whole process of its excavation is simulated and analyzed by use of the finite element software PLAXIS. The situations of stress and deformation of supporting structures of foundation pit and surrounding environment under complex conditions are studied. The numerical analysis and monitoring results show that the deformations of supporting structure system of the foundation pit and the surrounding environment can meet the requirements of the specifications for deformation control. It proves that PLAXIS HS model can effectively simulate and analyze the deformation of the surrounding environment influenced by excavation of the foundation pit, and the semi-inverse method used in this project can effectively control the deformation of the surrounding environment influenced by excavation of the foundation pit under complex conditions.
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    • 参考文献(8)
  • [1] 黄茂松, 朱晓宇, 张陈蓉. 基于周边既有建筑物承载能力的基坑变形研究[J]. 岩石力学与工程学报, 2012, 11(31): 2305-2312. (HANG Mao-song, ZHU Xiao-yu, ZHANG Chen-rong. Deformation controlling criterion for excavation based on berring capacity of adjacent buildings[J]. Chinese Journal of Rock Mechanics and Engineering, 2012, 11(31): 2305-2312. (in Chinese))
    [2] 李镜培, 柏 挺, 杨 军. 框架逆作超大深基坑施工对周边环境的影响[J]. 岩石力学与工程学报, 2012, 11(31): 2354-2363. (LI Jing-pe, BO Ting, YANG Jun. Influence of construction of super-large excavation with frame-top-down merhod on environments[J]. Chinese Journal of Rock Mechanics and Engineering, 2012, 11(31): 2354-2363. (in Chinese))
    [3] 徐中华, 王卫东. 敏感环境下基坑数值分析中土体本构模型的选择[J]. 岩土力学, 2010, 31(1): 258-264. (XU Zhong-hua, WANG Wei-dong. Selection of soil constitutive models for numerical analysis of deep excavations in close proximity to sensitive properties[J]. Rock and Soil Mechanics, 2010, 31(1): 258-264. (in Chinese))
    [4] 王曙光. 复杂周边环境基坑工程变形控制技术[J]. 岩石力学与工程学报, 2013, 33(增刊1): 474-477. (WANG Shu-guang. Deformation control of excavation engineering with comlictated surroundings[J]. Chinese Journal of Rock Mechanics and Engineering, 2013, 33(S1): 474-477. (in Chinese))
    [5] 郑 刚, 李志伟. 基坑开挖对邻近任意角度建筑物影响的有限元分析[J]. 岩石力学与工程学报, 2012, 4(34): 615-623. (ZHEN Gang, LI Zhi-wei. Finite element analysis of response of buildings with arbitrary angle adjacent to excavations[J]. Chinese Journal of Rock Mechanics and Engineering, 2012, 4(34): 615-623. (in Chinese))
    [6] 李四维, 高华东, 杨铁灯. 深基坑开挖现场监测与数值模拟分析[J]. 岩石力学与工程学报, 2011, 31(增刊1): 284-291. (LI Wei-si, GAO Hua-dong, YANG Tie-deng. Monitoring and numerical analysis of a deep foundation pit[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 31(S1): 284-291. (in Chinese))
    [7] 侯玉杰, 冯晓腊, 莫 云, 等. 天津高银中央商务区基坑工程内支撑体系受力及变形特征分析[J]. 工程勘察, 2013(11): 15-20. (HOU Yu-jie, FENG Xiao-la, MO Yun, et al. Weighted and deformation characteristics analysis of internal support system in Tianjin high silver CBD foundation pit excavation engineering[J]. Geotchnical Investigation and Surveying, 2013(11): 15-20. (in Chinese))
    [8] 查甫生, 林志月, 崔可锐. 深开挖卸载条件下基坑应力和变形特性的数值分析[J]. 岩土工程学报, 2013, 35(增刊1): 484-488. (ZHA Pu-sheng, LIN Zhi-yue, CUI Ke-rui. Numercal analysis of stress and deformation characteristics of foundation pits under deep excavation[J]. Chinese Journal of Geotchnical Engineering, 2013, 35(S1): 484-488. (in Chinese))
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出版历程
  • 收稿日期:  2014-07-27
  • 发布日期:  2014-07-27

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