• 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
ZHANG Minsi, YANG Yong, WANG Shuhong, ZHA Wenhua. Solutions and applications of maximum movable block in surrounding rock of tunnels[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(11): 2314-2322. DOI: 10.11779/CJGE20230826
Citation: ZHANG Minsi, YANG Yong, WANG Shuhong, ZHA Wenhua. Solutions and applications of maximum movable block in surrounding rock of tunnels[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(11): 2314-2322. DOI: 10.11779/CJGE20230826

Solutions and applications of maximum movable block in surrounding rock of tunnels

More Information
  • Received Date: August 27, 2023
  • Available Online: March 24, 2024
  • Due to the concealment of the discontinuities, the current exploration technology can not accurately obtain the location and mechanical parameters of all discontinuous, but can only obtain the occurrence information according to the exposure situation. The location of the discontinuities is a key factor for generating a block, so it is necessary to consider all the combinations of the discontinuities and excavation surface, and find the most unfavorable conditions to provide prediction and evaluation for engineering excavation. Based on the construction of joint pyramids, a projection translation method is proposed to solve the maximum movable region for cylindrical excavation surfaces. The dispersing-cutting-assembling method is used to reconstruct the curve surface block. Firstly, a set of radial virtual structures are set up to cut the pyramid block to realize the dispersion of the block. Secondly, based on the classification of face elements, a detailed surface-cutting-element algorithm is proposed. Finally, the cut elements are classified and combined to realize the reconstruction of the curve surface block. A 3D visualization program is developed based on the VC++ and OpenGL. The accuracy, applicability and robustness of the algorithm are verified by a numerical example and an engineering example. The maximum movable block program can be used to select the tunnel direction, providing reference for engineering design.
  • [1]
    GOODMAN R E, SHI G H. Block theory and its application to rock engineering[M]. Englewood Cliff: Prentice Hall, 1985.
    [2]
    PRIEST S D. Discontinuity Analysis for Rock Engineering[M]. London: Chapman & Hall, 1993.
    [3]
    DELPORT J L, MARTIN D H. A multiplier method for identifying keyblocks in excavations through jointed rock[J]. SIAM Journal on Algebraic and Discrete Methods, 1986, 7(2): 321-330. doi: 10.1137/0607035
    [4]
    LIN D, FAIRHURST C, STARFIELD A M. Geometrical identification of three-dimensional rock block systems using topological techniques[J]. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1987, 24(6): 331-338.
    [5]
    YU Q, OHNISHI Y, XUE G, et al. A generalized procedure to identify three-dimensional rock blocks around complex excavations[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 2009, 33(3): 355-375. doi: 10.1002/nag.720
    [6]
    ZHANG Z X, WANG S F, HUANG X, et al. Application of block theory for evaluating face stability under disc cutters loading of TBM, case study of a water-conveyance tunnel project[J]. Tunnelling and Underground Space Technology, 2019, 90: 249-263. doi: 10.1016/j.tust.2019.05.002
    [7]
    ZHANG Y T, XIAO M, CHEN J T. A new methodology for block identification and its application in a large scale underground cavern complex[J]. Tunnelling and Underground Space Technology, 2010, 25(2): 168-180. doi: 10.1016/j.tust.2009.10.005
    [8]
    ZHENG Y H, XIA L, YU Q C. A method for identifying three-dimensional rock blocks formed by curved fractures[J]. Computers and Geotechnics, 2015, 65: 1-11. doi: 10.1016/j.compgeo.2014.11.005
    [9]
    张子新, 孙钧. 块体理论赤平解析法及其在硐室稳定分析中的应用[J]. 岩石力学与工程学报, 2002, 21(12): 1756-1760. doi: 10.3321/j.issn:1000-6915.2002.12.002

    ZHANG Zixin, SUN Jun. Stereoanalytic method for block theory and its application in stability analysis of a cave[J]. Chinese Journal of Rock Mechanics and Engineering, 2002, 21(12): 1756-1760. (in Chinese) doi: 10.3321/j.issn:1000-6915.2002.12.002
    [10]
    张奇华, 邬爱清, 石根华. 关键块体理论在百色水利枢纽地下厂房岩体稳定性分析中的应用[J]. 岩石力学与工程学报, 2004, 23(15): 2609-2614. doi: 10.3321/j.issn:1000-6915.2004.15.024

    ZHANG Qihua, WU Aiqing, SHI Genhua. Application of key block theory to analysis of rock stability for underground plant in Baise hydraulic project[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(15): 2609-2614. (in Chinese) doi: 10.3321/j.issn:1000-6915.2004.15.024
    [11]
    杨勇, 张敏思, 王述红, 等. 钓鱼台隧道复杂围岩设计施工过程关键块确定技术[J]. 现代隧道技术, 2017, 54(3): 105-111.

    YANG Yong, ZHANG Minsi, WANG Shuhong, et al. Key block determination in the progress of design and construction of the Diaoyutai tunnel in complex surrounding rock[J]. Modern Tunnelling Technology, 2017, 54(3): 105-111. (in Chinese)
    [12]
    ELMOUTTIE M, POROPAT G, KRÄHENBÜHL G. Polyhedral modelling of underground excavations[J]. Computers and Geotechnics, 2010, 37(4): 529-535. doi: 10.1016/j.compgeo.2010.02.009
    [13]
    LI M C, ZHANG Y, ZHOU S B, et al. Refined modeling and identification of complex rock blocks and block-groups based on an enhanced DFN model[J]. Tunnelling and Underground Space Technology, 2017, 62: 23-34. doi: 10.1016/j.tust.2016.11.002
    [14]
    LIU J, LI Z K, ZHANG Z Y. Stability analysis of block in the surrounding rock mass of a large underground excavation[J]. Tunnelling and Underground Space Technology, 2004, 19(1): 35-44. doi: 10.1016/S0886-7798(03)00084-1
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