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Volume 39 Issue z2
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TANG Zhen, HUANG Mao-song, YUAN Ju-yun. Upper bound analysis of basal stability of excavations in clay based on variable combined mechanism[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(z2): 180-183. DOI: 10.11779/CJGE2017S2044
Citation: TANG Zhen, HUANG Mao-song, YUAN Ju-yun. Upper bound analysis of basal stability of excavations in clay based on variable combined mechanism[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(z2): 180-183. DOI: 10.11779/CJGE2017S2044
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Upper bound analysis of basal stability of excavations in clay based on variable combined mechanism

  • 1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China;
    2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China

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  • Received Date: August 01, 2017
  • Published Date: December 19, 2017
    Graphical Abstract
    • Abstract
  • The traditional failure mechanisms with constant shapes usually overestimate the basal stability of excavations in clay. A new mechanism is established based on the upper bound theorem. The least upper bound solutions and the corresponding failure mechanisms are obtained through the optimizations with geometry parameters. The non-homogeneous and anisotropic undrained shear strengths are considered. The new mechanism is verified through cases studies. The results show that the accuracy of the new mechanism is better than that of the traditional failure mechanism, and the proposed mechanism is close to that obtained from the multi-block upper bound method.
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    • References (12)
  • [1]
    TERZAGHI K. Theoretical soil mechanics[M]. New York: Wiley, 1943.
    [2]
    UKRITCHON B, WHITTLE A J, SLOAN S W. Undrained stability of braced excavations in clay[J]. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2003, 129(8): 738-755.
    [3]
    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 excavations in clay[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(1): 73-81. (in Chinese))
    [4]
    黄茂松, 余生兵. 基坑抗隆起稳定的块体集上限分析[J]. 岩土工程学报, 2012, 34(8): 1440-1447. (HUANG Mao-song, YU Sheng-bing. Upper bound analysis of basal stability in undrained clay based on block set mechanism [J]. Chinese Journal of Geotechnical Engineering, 2012, 34(8): 1440-1447. (in Chinese))
    [5]
    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(增刊2): 906-909. (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(S2): 906-909. (in Chinese))
    [6]
    CHANG M F. Basal stability analysis of braced cuts in clay[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2000, 126(3): 276-279.
    [7]
    FAHEEM H, CAI F, UGAI K, et al. Two-dimensional base stability of excavations in soft soils using FEM[J]. Computers and Geotechnics, 2003, 30(2): 141-163.
    [8]
    黄茂松, 余生兵, 秦会来. 基于上限法的 K 0 固结黏土基坑抗隆起稳定分析[J]. 土木工程学报, 2011, 44(3): 101-108. (HUANG Mao-song, YU Sheng-bing, QIN Hui-lai. Upper bound method for basal stability analysis of braced excavations in K 0 -consolidated clays[J]. China Civil Engineering Journal, 2011, 44(3): 101-108. (in Chinese))
    [9]
    黄茂松, 杜佐龙, 宋春霞. 支护结构入土深度对黏土基坑抗隆起稳定的影响分析[J]. 岩土工程学报, 2011, 33(7): 1097-1103. (HUANG Mao-song, DU Zuo-long, SONG Chun-xia. Effects of inserted depth of wall penetration on basal stability of foundation pits in clay[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(7): 1097-1103. (in Chinese))
    [10]
    杜佐龙, 黄茂松. 非均质与各向异性黏土基坑抗隆起稳定性分析[J]. 岩土力学, 2013, 34(2): 455–467. DU Zuo-long, HUANG Mao-song. Analysis for basal stability of braced excavation in nonhomogeneous and anisotropic clay[J]. Rock and Soil Mechanics, 2013, 34(2): 455-467. (in Chinese))
    [11]
    CASAGRANDE A, CARILLO N. Shear failure of anisotropic materials[J]. Journal of Boston Society of Civil Engineers, 1944, 31(4): 74-81.
    [12]
    HASHASH Y M A, WHITTLE A J. Ground movement prediction for deep excavations in soft clay[J]. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 1996, 122(6): 474-486.
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