Whole section anchor-grouting reinforcement technology and its application in underground roadways with loose and fractured surrounding rock

被引：106
作者：
Wang Fangtian [1 ,2 ]
Zhang Cun [1 ,2 ]
Wei Shuaifeng [1 ,2 ]
Zhang Xiaogang [1 ,2 ]
Guo Shenghua [3 ]
机构：
[1] China Univ Min & Technol, Minist Educ China, Key Lab Deep Coal Resource Min, Sch Mines, Xuzhou 221116, Peoples R China
[2] China Univ Min & Technol, State Key Lab Coal Resources & Mine Safety, Xuzhou 221116, Peoples R China
[3] Yangquan Coal Ind Grp Co Ltd, Coal Mine 1, Yangquan 045008, Peoples R China
来源：
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY | 2016年 / 51卷
基金：
中国国家自然科学基金;
关键词：
Roadway support; Loose and fractured surrounding rock; Double shell anchor-grouting reinforcement; Whole section anchor-grouting reinforcement technology; DEFORMATION;
D O I：
10.1016/j.tust.2015.10.029
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Strata control technology for roadways with loose and fractured surrounding rock is one of the most challenging areas in underground roadway support. Based on the case of the serious deformations that occurred in a western main roadway of a Chinese coal mine, this paper analyzes the characteristics and influencing factors of deformation of roadways with loose and fractured surrounding rock. A mechanical model of the roadway's surrounding rock has been established to study the different forces at play in the plastic zone of the roadway via means of site observation, theoretical analysis, numerical simulation and onsite experiments. Based on the double shell anchor-grouting reinforcement mechanism, whole section anchor-grouting reinforcement technology (WSAGRT) was implemented in the coal mine with the pertinent support parameters optimized by numerical simulation. The results show that the deformation of the rock surrounding the roadway has been held in check effectively, and thus WSAGRT warrants a safer and more effective mining environment. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：133 / 143
页数：11
相关论文
共 19 条
  • [1] [Anonymous], 2014, Master Thesis
  • [2] Analytical study of steel bolt profile and its influence on bolt load transfer
    Cao, Chen
    Nemcik, Jan
    Aziz, Naj
    Ren, Ting
    [J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2013, 60 : 188 - 195
  • [3] Introducing aggregate into grouting material and its influence on load transfer of the rock bolting system
    Chen, Cao
    Ting, Ren
    Cook, Chris
    [J]. INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY, 2014, 24 (03) : 325 - 328
  • [4] Dubinski J., 1990, STRATA CONTROL DEEP, P1
  • [5] He M.C., 2003, MECH SOFT ROCK ENG
  • [6] Geomechanical behaviour of laminated, weak coal mine roof strata and the implications for a ground reinforcement strategy
    Hebblewhite, BK
    Lu, T
    [J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2004, 41 (01) : 147 - 157
  • [7] Principle and practice of coupling support of double yielding shell of soft rock roadway under high stress
    Li Chong
    Wang Zhongliang
    Liu Tao
    [J]. INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY, 2014, 24 (04) : 513 - 518
  • [8] Li L., 2010, COAL SCI TECHNOL, V38, P5
  • [9] Model test study on surrounding rock deformation and failure mechanisms of deep roadways with thick top coal
    Li, S. C.
    Wang, Q.
    Wang, H. T.
    Jiang, B.
    Wang, D. C.
    Zhang, B.
    Li, Y.
    Ruan, G. Q.
    [J]. TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 2015, 47 : 52 - 63
  • [10] Liu QS, 2011, ROCK SOIL MECH, V32, P3097
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