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软土基坑抗隆起上限解法的工程应用

秦会来, 黄茂松

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秦会来, 黄茂松. 软土基坑抗隆起上限解法的工程应用[J]. 岩土工程学报, 2013, 35(zk2): 906-909.
引用本文: 秦会来, 黄茂松. 软土基坑抗隆起上限解法的工程应用[J]. 岩土工程学报, 2013, 35(zk2): 906-909.
shu
QIN Hui-lai, HUANG Mao-song. Application of upper bound method for basal stability analysis in practice[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 906-909.
Citation: QIN Hui-lai, HUANG Mao-song. Application of upper bound method for basal stability analysis in practice[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 906-909.
shu

软土基坑抗隆起上限解法的工程应用  English Version

  • 1. 交通运输部公路科学研究院道路结构与材料交通运输行业重点实验室,北京 100088; 2. 中国建筑股份有限公司技术中心,北京 101300; 3. 同济大学地下建筑与工程系,上海 200092; 4. 同济大学岩土及地下工程教育部重点实验室,上海200092 材料交通行业重点实验室（北京）开放课题（2013

基金项目: 中建股份科技资助项目（CSCEC-2010-Z-01）
详细信息
    作者简介:

    秦会来(1979- )，男，河南辉县人，工学博士，主要从事岩土工程稳定性分析研究。E-mail: qinhuilai@126.com。

  • 中图分类号: TU470；TU473.2

Application of upper bound method for basal stability analysis in practice

  • 1. Key Laboratory of Road Structure and Material of Ministry of Transport, Research Institute of Highway Ministry of Transport, Beijing 100088, China; 2. Technical Center, China State Construction Engineering Corporation, Beijing 101300, China; 3. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 4. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China

摘要

    摘要
  • 摘要: 多块体上限方法是求解土工稳定性问题的一种严格、高效、简便且实用的方法。将多块体上限法应用于软土基坑坑底抗隆起稳定分析中,提出了基坑抗隆起稳定分析的多块体上限解法。根据我国基坑工程中习惯采用固结不排水剪强度指标的特点,提出了多块上限方法应用时相应的处理方法,实现了多块体上限方法在我国基坑工程实践中的应用。通过若干具体工程实例的计算,并与现有的地基承载力模式以及圆弧滑动模式抗隆起稳定分析结果的对比,给出了抗隆起稳定采用多块体上限解时的安全系数选择标准。
    Abstract: It is a good choice for applying the multi-block upper bound method to the stability analysis of geotechnical problems. This method is simple, highly effective and based on rigorous theory basis. The multi-block upper bound method is used to solve the basal stability of deep excavations. According to the disciplines in China, the consolidated-undrained strength parameters are always employed to design the excavations. Simplification is taken to apply the consolidated-undrained strength parameters to the calculation in the upper bound method. Several excavation cases are calculated by the multi-block upper bound method, and the results are compared with those of the bearing capacity method and the circular slip method. The reasonable criterion is discussed when the safety factor for basal stability analysis is obtained from the multi-block upper bound method.
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    • 参考文献(12)
  • [1] Canadian Geotechnical Society. Canadian foundation engineering manual[M] 4th ed. Richmond, BC: BiTech Publishers Ltd, Canada, 2006.
    [2] OU CHANG YU. Deep excavation: Theory and practice[M]. Balkema: Taylor & Francis Group, 2006.
    [3] TERZAGHI K. Theoretical soil mechanics[M]. New York: John Wiley and Sons, 1943.
    [4] BJERRUM L, EIDE O. Stability of strutted excavations in clay[J]. Géotechnique, 1956, 6(1): 115-128.
    [5] 刘国彬, 王卫东. 基坑工程手册[M]. 2版. 北京: 中国建筑工业出版社, 2009: 136-142. (LIU Guo-bin, WANG Wei-dong. Excavations engineering manual[M]. 2nd ed. Beijing: China Architecture and Building Press, 2009: 136-142. (in Chinese))
    [6] CHANG M F. Basal stability analysis of braced cuts in clay[J]. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2000, 126(3): 276-279.
    [7] CAI F, UGAI K, HAGIWARA T. Base stability of circular excavation in soft clay[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2002, 128(8): 702-706.
    [8] 王卫东, 徐中华. 基于强度折减法的圆形深基坑坑底抗隆起稳定性分析[J]. 建筑结构学报, 2010, 31(5): 195-201. (WANG Wei-dong, XU Zhong-hua. Strength reduction approach for analyzing safety against basal heave of circular deep excavations[J]. Journal of Building Structures, 2010, 31(5): 195-201. (in Chinese))
    [9] UKRITCHON B, WHITTLE A J, SLOAN S W. Undrained stability of braced excavations in clay[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2003, 129(8): 738-755.
    [10] 秦会来, 黄茂松, 马少坤. 黏土基坑抗隆起稳定分析的多块体上限解[J]. 岩石力学与工程学报, 2010, 29(1): 73-81. (QIN Hui-lai, HUANG Mao-song, MA Shao-kun. Multi-block upper bound method for basal heave stability analysis of braced excavation in clay[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(1): 73-81. (in Chinese))
    [11] 秦会来, 陈祖煜, 刘立鹏. 基于上限理论的软土基坑抗隆起稳定分析方法[J]. 岩土工程学报, 2012, 34(9): 1611-1619. (QIN Hui-lai, CHEN Zu-yu, LIU Li-peng. Basal stability analysis for the excavations in soft clay based on the upper-bound method[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(9): 1611-1619. (in Chinese))
    [12] CHEN W F. Limit analysis and soil plasticity[M]. Amsterdam: Elsevier Science, 1975.
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出版历程
  • 收稿日期:  2013-07-18
  • 发布日期:  2013-11-24

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    HUANG Mao-song

    • 1. Key Laboratory of Road Structure and Material of Ministry of Transport, Research Institute of Highway Ministry of Transport, Beijing 100088, China; 2. Technical Center, China State Construction Engineering Corporation, Beijing 101300, China; 3. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 4. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China

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