Journal of Central South University

, Volume 25, Issue 5, pp 1240–1250 | Cite as

Application of a combined supporting technology with U-shaped steel support and anchor-grouting to surrounding soft rock reinforcement in roadway

  • Hui Wang (王辉)
  • Peng-qiang Zheng (郑朋强)
  • Wen-juan Zhao (赵文娟)
  • Hong-ming Tian (田洪铭)


Soft rock surrounding deep roadway has poor stability and long-term rheological effect. More and larger deformation problems of surrounding rock occur due to adverse supporting measures for such roadways, which not only affects the engineering safety critically but also improves the maintenance costs. This paper takes the main rail roadway with severely deformation in China’s Zaoquan coal mine as an example to study the long-term deformation tendency and damage zone by means of in-situ deformation monitoring and acoustic wave testing technique. A three-dimensional finite element model reflecting the engineering geological condition and initial design scheme is established by ABAQUS. Then, on the basis of field monitoring deformation data, the surrounding rock geotechnical and rheological parameters of the roadway are obtained by back analysis. A combined supporting technology with U-shaped steel support and anchor-grouting is proposed for the surrounding soft rock. The numerical simulation of the combined supporting technology and in-situ deformation monitoring results show that the soft rock surrounding the roadway has been held effectively.

Key words

soft rock roadway rheological effect supporting technology numerical simulation reinforcement 



针对深部软岩巷道围岩长期流变大变形破坏问题,以中国枣泉煤矿运输巷道工程为例,利用现 场变形监测和声波测试技术,分析巷道软弱围岩长期变形趋势及破坏范围;利用数值模拟方法,建立 能够反映工程地质状况及初始设计方案的三维有限元模型,并以现场监测变形数据为基础,反演获取 巷道围岩力学参数和流变参数。针对围岩破坏特征,提出“U 型钢支架+围岩锚固注浆”联合支护技术, 并利用有限元模型对其支护效果进行数值模拟,结合现场监测变形数据分析,验证了支护方法的有效 性。


软岩巷道 流变效应 支护技术 数值模拟 加固 


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  1. [1]
    DESAI C S, SALAMI M R. Constitutive model and associated testing for soft rock [J]. International Journal of Rock Mechanics & Mining Sciences & Geomechanics Abstracts, 1987, 24(5): 299–307. DOI: 10.1016/0148-9062(87)90866-7.CrossRefGoogle Scholar
  2. [2]
    LIU H H, RUTQVIST J, BIRKHOLZER J T. Constitutive relationships for elastic deformation of clay rock: Data analysis [J]. Rock Mechanics and Rock Engineering, 2011, 44(4): 463–468. DOI: 10.1007/s00603-010-0131-4.CrossRefGoogle Scholar
  3. [3]
    LIAO H J, PU W C, YIN J H, AKAISHI M, TONOSAKI A. Numerical modeling of the strain rate effect on the stress-strain relation for soft rock using a 3-d elastic visco-plastic model [J]. International Journal of Rock Mechanics and Mining Sciences, 2004, 41(Suppl. 1): 1–6. DOI: 10.1016/j.ijrmms.2004.03.064.CrossRefGoogle Scholar
  4. [4]
    WU L, CUI C, GENG N, WANG J. Remote sensing rock mechanics (RSRM) and associated experimental studies [J]. International Journal of Rock Mechanics and Mining Sciences, 2000, 37(6): 879–888. DOI: CrossRefGoogle Scholar
  5. [5]
    SHEN B T. Coal mine roadway stability in soft rock: A case study [J]. Rock Mechanics and Rock Engineering, 2014, 47(6): 2225–2238. DOI: 10.1007/s00603-013-0528-y.CrossRefGoogle Scholar
  6. [6]
    WANG Hui, CHEN Wei-zhong, WANG Qing-biao, ZHENG Peng-qiang. Rheological properties of surrounding rock in deep hard rock tunnels and its reasonable support form [J]. Journal of Central South University, 2016, 23(4): 898–905. DOI: 10.1007/s11771-016-3137-6.CrossRefGoogle Scholar
  7. [7]
    KANG Y, LIU Q, GONG G, WANG H. Application of a combined support system to the weak floor reinforcement in deep underground coal mine [J]. International Journal of Rock Mechanics and Mining Sciences, 2014, 71: 143–150. DOI: 10.1016/j.ijrmms.2014.03.017.CrossRefGoogle Scholar
  8. [8]
    QIAN D, ZHANG N, SHIMADA H, WANG C, SASAOKA T, ZHANG N. Stability of goaf-side entry driving in 800-m-deep island longwall coal face in underground coal mine [J]. Arabian Journal of Geosciences, 2016, 9: 1–28. DOI: 10.1007/s12517-015-2119-6.CrossRefGoogle Scholar
  9. [9]
    GAO F, STEAD D, KANG H. Numerical simulation of squeezing failure in a coal mine roadway due to mining-induced stresses [J]. Rock Mechanics and Rock Engineering, 2015, 48(4): 1635–1645. DOI: 10.1007/s00603-014-0653-2.CrossRefGoogle Scholar
  10. [10]
    SHREEDHARAN S, KULATILAKE P H S W. Discontinuum–equivalent continuum analysis of the stability of tunnels in a deep coal mine using the distinct element method [J]. Rock Mechanics and Rock Engineering, 2016, 49(5): 1903–1922. DOI: 10.1007/s00603-015-0885-9.CrossRefGoogle Scholar
  11. [11]
    WANG F, ZHANG C, WEI S, ZHANG X, GUO S. Whole section anchor–grouting reinforcement technology and its application in underground roadways with loose and fractured surrounding rock [J]. Tunnelling and Underground Space Technology, 2016, 51(1): 133–143. DOI: 10.1016/j.tust.2015.10.029.Google Scholar
  12. [12]
    HAO Y H, AZZAM R. The plastic zones and displacements around underground openings in rock masses containing a fault [J]. Tunnelling and Underground Space Technology, 2005, 20(1): 49–61. DOI: 10.1016/j.tust.2004.05.003.CrossRefGoogle Scholar
  13. [13]
    WANG H, JIANG Y, XUE S, SHEN B, WANG C, LV J, YANG T. Assessment of excavation damaged zone around roadways under dynamic pressure induced by an active mining process [J]. International Journal of Rock Mechanics and Mining Sciences, 2015, 77: 265–277. DOI: 10.1016/j.ijrmms.2015.03.032.CrossRefGoogle Scholar
  14. [14]
    HIBBITT K, KARLSSORN B, SORENSEN P. ABAQUS/standard user subroutines reference manual [M]. USA: The Pennsylvania State University, 2010.Google Scholar
  15. [15]
    LO K Y, YUEN C M K. Design of tunnel lining in rock for long term time effects [J]. Canadian Geotechnical Journal, 1981, 18(1): 24–39. DOI: 10.1139/t81-004.CrossRefGoogle Scholar
  16. [16]
    LADANYI B, GILL D E. Design of tunnel linings in a creeping rock [J]. Geotechnical & Geological Engineering, 1988, 6(2): 113–126. DOI: 10.1007/BF00880802.Google Scholar
  17. [17]
    MALAN D F. Simulating the time-dependent behaviour of excavations in hard rock [J]. Rock Mechanics and Rock Engineering, 2002, 35(4): 225–254. DOI: 10.1007/s00603-002-0026-0.CrossRefGoogle Scholar
  18. [18]
    TIAN H, CHEN W, YANG D, DAI Y, YANG J. Application of the orthogonal design method in geotechnical parameter back analysis for underground structures [J]. Bulletin of Engineering Geology and the Environment, 2016, 75(1): 239–249. DOI: 10.1007/s10064-015-0730-0.CrossRefGoogle Scholar
  19. [19]
    TIAN H, CHEN W, TAN X, WANG H, TIAN T. Study of reasonable support scheme for soft rock tunnel in high geostress zone [J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(11): 2285–2292. (in Chinese) Google Scholar

Copyright information

© Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Resource and Civil EngineeringShandong University of Science and TechnologyTai’anChina
  2. 2.Key Laboratory of Safety and High-efficiency Coal Mining, Ministry of EducationAnhui University of Science and TechnologyHuainanChina
  3. 3.Department of Building EngineeringTaishan PolytecnnicTai’anChina
  4. 4.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil MechanicsChinese Academy of ScienceWuhanChina

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