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基于孔隙比随深度变化的基坑开挖对邻近刚柔性桩基的影响研究

马少坤, 黄艳珍, 陈欣, 江杰, 邵羽

马少坤, 黄艳珍, 陈欣, 江杰, 邵羽. 基于孔隙比随深度变化的基坑开挖对邻近刚柔性桩基的影响研究[J]. 岩土工程学报, 2014, 36(zk2): 140-145. DOI: 10.11779/CJGE2014S2024
引用本文: 马少坤, 黄艳珍, 陈欣, 江杰, 邵羽. 基于孔隙比随深度变化的基坑开挖对邻近刚柔性桩基的影响研究[J]. 岩土工程学报, 2014, 36(zk2): 140-145. DOI: 10.11779/CJGE2014S2024
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MA Shao-kun, HUANG Yan-zhen, CHEN Xin, JIANG Jie, SHAO Yu. Influence of excavation on adjacent rigid-flexible piles considering change of void ratio coefficient with depth[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(zk2): 140-145. DOI: 10.11779/CJGE2014S2024
Citation: MA Shao-kun, HUANG Yan-zhen, CHEN Xin, JIANG Jie, SHAO Yu. Influence of excavation on adjacent rigid-flexible piles considering change of void ratio coefficient with depth[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(zk2): 140-145. DOI: 10.11779/CJGE2014S2024
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基于孔隙比随深度变化的基坑开挖对邻近刚柔性桩基的影响研究  English Version

  • 1. 广西大学土木建筑工程学院,广西 南宁 530004;
    2. 广西大学工程防灾与结构安全重点实验室,广西 南宁 530004;
    3. 广西医科大学附属口腔医院,广西 南宁530021;
    4. 中船第九设计研究院工程有限公司,上海 200063

基金项目: 国家自然科学基金项目（51068002,41362016）; 上海市青年科技启明星计划项目（13QB1404300）; 广西理工科学实验中心重点项目（LGZX201103）
详细信息
    作者简介:

    马少坤(1972- ),男,教授,主要从事地下工程研究工作。E-mail: mashaokun@sina.com。

Influence of excavation on adjacent rigid-flexible piles considering change of void ratio coefficient with depth

  • 1. College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, China;
    2. Key Laboratory of Disaster Prevention and Structural Safety, Guangxi University, Nanning 530004, China;
    3. College of Stomatology of Guangxi Medical University, Nanning 530021, China;
    4. China Shipbuilding NDRI Engineering Co., Ltd., Shanghai 200063, China

施引文献

    摘要
  • 摘要: 基坑开挖引起邻近土体产生附加变形和应力松弛,导致邻近建筑物桩基产生附加内力和附加位移。基于修正剑桥模型,推导了孔隙比随深度非线性变化的计算公式,采用ABAQUS中的用户子程序VOIDRI进行二次开发,分析了基坑不同开挖工况下邻近桩基的附加内力和变形,并讨论了不同桩基刚度对其附加内力和变形的影响规律,得出了一些有意义的结论,可为基坑设计和施工过程中的邻近建筑物桩基变形预测提供参考。
    Abstract: Excavation will easily induce additional deformation and stress relaxation of soils, causing the additional inner forces and displacements of the adjacent piles. Based on the modified Cam-clay model, the user subroutine named VOIDRI of ABAQUS is used to achieve the void ratio nonlinearly changing with depth to perform numerical simulations. The elastic modulus and diameter of pile are taken into account, and the influences of excavation on the additional inner forces and displacements of the adjacent piles are discussed. Some suggestions for the design and construction are proposed.
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    • 参考文献(9)
  • [1] 杨 敏, 周洪波, 杨 桦. 基坑开挖与临近桩基相互作用分析[J]. 土木工程学报, 2005, 38(4): 91-96. (YANG Min, ZHOU Hong-bo, YANG Hua. Numerical analysis of pile response due to unsupported excavation-induced lateral soil movement[J]. China Civil Engineering Journal, 2005, 38(4): 91-96. (in Chinese))
    [2] 匡希龙, 龚锦林, 汤春林. 有限元模拟分析基坑开挖对邻近建筑桩基影响[J]. 路基工程, 2006(6): 4-6. (KUANG Xi-long, GONG Jin-lin, FANG Chun-lin. Fimte element analysis for effect of foundation pit excavations to adjacent existing piles[J]. Subgrade Engineering, 2006(6): 4-6. (in Chinese))
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    [6] 李龙剑, 杨宏伟, 李政林, 等. 基坑开挖对邻近桥梁桩基的影响分析[J]. 地下空间与工程学报, 2011, 7(增刊2): 1697-1701. (LI Long-jian, YANG Hong-wei, LI Zheng-lin, et al. Numerical analysis of the influence of unsupported excavation on adjacent viaduct foundation[J]. Chinese Journal of Underground Space and Engineering, 2011, 7(S2): 1697-1701. (in Chinese))
    [7] 秦会来, 张甲峰, 郭院成, 等. ABAQUS在计算基坑开挖变形中的应用研究[J]. 岩土工程学报, 2012, 34(增刊): 82-86. (QIN Hui-lai, ZHANG Jia-feng, GUO Yuan-cheng, et al. Application of ABAQUS in calculation deformation of excavations[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(S0): 82-86. (in Chinese))
    [8] 马少坤, 邵 羽, 黄艳珍. 基于孔隙比和渗透系数与深度相关的深基坑开挖变形分析[J]. 岩土工程学报, 2013, 35(增刊2): 940-944. (MA Shao-kun, SHAO Yu, HUANG Yan-zhen. Deformation of deep foundation pits due to excavation considering change of void ratio and permeability coefficient with depth[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(S2): 940-944. (in Chinese))
    [9] OU C, HSIEH P. A simplified method for predicting ground settlement profiles induced by excavation in soft clay[J]. Computers and Geotechnics, 2011, 38: 987-997.
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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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