• 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引(EI)收录期刊
  • Scopus数据库收录期刊

黏土地层隧道开挖面三维稳定性上限分析

宋春霞, 黄茂松, 周维祥

宋春霞, 黄茂松, 周维祥. 黏土地层隧道开挖面三维稳定性上限分析[J]. 岩土工程学报, 2015, 37(4): 650-658. DOI: 10.11779/CJGE201504010
引用本文: 宋春霞, 黄茂松, 周维祥. 黏土地层隧道开挖面三维稳定性上限分析[J]. 岩土工程学报, 2015, 37(4): 650-658. DOI: 10.11779/CJGE201504010
SONG Chun-xia, HUANG Mao-song, ZHOU Wei-xiang. Three-dimensional face stability analysis of tunnels in cohesive soils by upper bound limit method[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(4): 650-658. DOI: 10.11779/CJGE201504010
Citation: SONG Chun-xia, HUANG Mao-song, ZHOU Wei-xiang. Three-dimensional face stability analysis of tunnels in cohesive soils by upper bound limit method[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(4): 650-658. DOI: 10.11779/CJGE201504010

黏土地层隧道开挖面三维稳定性上限分析  English Version

基金项目: 国家杰出青年科学基金项目(50825803); 上海市优秀学科; 带头人计划(09XD1403900)
详细信息
    作者简介:

    宋春霞(1981- ),女,河南临颍县人,博士,讲师,主要从事岩土工程等方面的研究与教学工作。E-mail: songchunxia623@126.com。

    通讯作者:

    黄茂松

Three-dimensional face stability analysis of tunnels in cohesive soils by upper bound limit method

  • 摘要: 对不排水均质黏土地基隧道开挖失稳三维破坏模式进行改进,弥补了目前隧道开挖稳定性问题中三维极限分析上限法的不足。采用截椭圆柱体构造多块体平动破坏模式,克服了现有三维多块体平动破坏模式与隧道开挖面不完全接触的缺陷;进一步针对三维多块体平动破坏模式存在的问题,提出了多块体转动-剪流组合破坏模式,得到了均质黏土地层中隧道开挖稳定的上限解,明显改善了现有的极限分析上限解,并与三维弹塑性有限单元法结果及文献中的离心试验结果进行对比,验证了上限分析方法的有效性。
    Abstract: The three-dimensional failure mechanism for the face stability of tunnel in pure clay under undrained condition is improved. As in the existing 3D translational multi-block collapse mechanism, the intersection of the circular truncated cylinder with the tunnel face is an ellipse surface that does not cover the entire circular face of the tunnel. The truncated elliptical cylinder is adapted to construct the 3D translational multi-block failure mechanism. In the present 3D mechanism, all the radial cross-sections of the rigid block are elliptical, and the intersection of the cylinder with the tunnel face is a circular face. The 3D collapse mechanism is further modified to intermix rotating multi-block and homogeneous shear zone, and the corresponding upper bound solution significantly improves the existing limit analysis. The validity of the combined upper bound solution for the tunnel stability in clays is demonstrated by comparing with the existing 3D finite element and centrifuge results.
  • [1] BROMS B B, BENNERMARK H. Stability of clay at vertical openings[J]. Journal of Soil Mechanics and Foundations Division, 1967, 96(1): 71-94.
    [2] DAVIS E H, GUNN M J, MAIR R J, et al. The stability of shallow tunnels and underground openings in cohesive material[J]. Géotechnique, 1980, 30(4): 397-416.
    [3] MAIR R J. Centrifugal modeling of tunnel construction in soft clay[D]. London: University of Cambridge, 1979.
    [4] SLOAN S W, ASSADI A. Undrained stability of a plane strain heading[J]. Canadian Geotechnical Journal, 1994, 31(3): 443-450.
    [5] AUGARDE C E, LYAMIN A V, SLOAN S W. Stability of an undrained plane strain heading revisited[J]. Computers and Geotechnics, 2003, 30(5): 419-430.
    [6] 宋春霞, 黄茂松, 吕玺琳. 非均质地基中平面应变隧道开挖面稳定上限分析[J]. 岩土力学, 2011, 32(9): 2645-2650+2662. (SONG Chun-xia, HUANG Mao-song, LÜ Xi-Lin. Upper bound analysis of plane strain tunnel in nonhomogeneous clays[J]. Rock and Soil Mechanics, 2011, 32(9): 2645-2650+2662. (in Chinese))
    [7] ASSADI A, SLOAN S W. Undrained stability of shallow square tunnel[J]. Journal of Geotechnical Engineering, ASCE, 1991, 117(8): 1152-1173.
    [8] SLOAN S W, ASSADI A. Undrained stability of a square tunnel in a soil whose strength increases linearly with depth[J]. Computers and Geotechnics, 1991, 12(4): 321-346.
    [9] WILSON D W, ABBO A J, SLOAN S W, et al. Undrained stability of a square tunnel where the shear strength increases linearly with depth[J]. Computers and Geotechnics, 2013, 49: 314-325.
    [10] WILSON D W, ABBO A J, SLOAN S W, et al. Undrained stability of a circular tunnel where the shear strength increases linearly with depth[J]. Canadian Geotechnical Journal, 2011, 48: 1328-1342.
    [11] 黄茂松, 宋春霞, 吕玺琳. 非均质黏土地基隧道环向开挖面稳定上限分析[J]. 岩土工程学报, 2013, 35(8): 1504-1512. (HUANG Mao-song, SONG Chun-xia, LÜ Xi-lin. Upper bound analysis for stability of a circular tunnel in heterogeneous clay[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(8): 1504-1512. (in Chinese))
    [12] LECA E, DORMIEUX L. Upper and lower bound solutions for the face stability of shallow circular tunnels in frictional material[J]. Géotechnique, 1990, 40(4): 581-606.
    [13] SOUBRA A H, REGENASS P. Three-dimensional passive earth pressures by kinematical approach[J]. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2000, 126(11): 969-978.
    [14] OUBRA A H, DIAS D, FABRICE E, et al. Three-dimensional face stability analysis of circular tunnels by a kinematical approach[C]// GeoCongress 2008: Characterization, Moni- toring, and Modeling of GeoSystems. New Orleans, 2008: 894-901.
    [15] MOLLON G, DIAS D, SOUBRA A H. Probabilistic analysis and design of circular tunnels against face stability[J]. International Journal of Geomechanics, 2009, 9(6): 237-249.
    [16] DIAS D, JANIN J, SOUBRA A H, et al. Three-dimensional face stability analysis of circular tunnels by numerical simulations[C]// GeoCongress 2008: Characterization, Monitoring, and Modeling of GeoSystems. New Orleans, 2008: 886-893.
    [17] MOLLON G, DIAS D, SOUBRA A. Face stability analysis of circular tunnels driven by a pressurized shield [J]. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2010, 136(1): 215-229.
    [18] CHEN W. Limit analysis and soil plasticity[M]. Amsterdam: Elsevier, 1975.
    [19] 周维祥. 非均质黏土地基隧道开挖面稳定性分析[D]. 上海, 同济大学, 2011. (ZHOU Wei-xiang. Stability of shield tunnel excavation in undrained condition[D]. Shanghai: Tongji University, 2011. (in Chinese))
    [20] KIMURA T., MAIR R. J. Centrifugal testing of model tunnels in clay[C]// Proc 10th Int Conf of Soil Mechanics and Foundation Engineering. Rotterdam: Balkema, 1981: 319-322.
    [21] RANDOLPH M F, HOULSBY G T. The limiting pressure on a circular pile loaded laterally in cohesive soil[J]. Géotechnique, 1984, 34(4): 613-623.
    [22] RANDOLPH M F, MARTIN C M, HU Y. Limiting resistance of a spherical penetrometer in cohesive material[J]. Géotechnique, 2000, 50(5): 573-582.
    [23] MICHALOWSKI R L, DRESCHER A. Three-dimensional stability of slopes and excavations[J]. Géotechnique, 2009, 59(10): 839-850.
计量
  • 文章访问数:  372
  • HTML全文浏览量:  1
  • PDF下载量:  259
  • 被引次数: 0
出版历程
  • 收稿日期:  2014-07-20
  • 发布日期:  2015-05-05

目录

    /

    返回文章
    返回