(1. Faculty of Safety Engineering，China University of Mining and Technology，Xuzhou，Jiangsu 221008，China；2. Energy Chemical Industry Research Institute，China Pingmei Shenma Group，Pingdingshan，Henan 467000，China；3. State Key Laboratory of Geomechanics and Geotechnical Engineering，Institute of Rock and Soil Mechanics，Chinese Academy of Sciences，
Wuhan，Hubei 430071，China)
Abstract：A typical deep roadway with large-scale soft surrounding rock is researched here to study the stability of surrounding rock in Pingdingshan coal mine. With the laboratory experiment，the complex geological condition in deep rock roadway was determined. Discrete element method was adopted to simulate the deformation and failure of surrounding rock. The failure mechanism of surrounding rock was revealed. Technologies of spray layer which resisted bending and cracking and floor heave control were proposed. The main reason for instability of soft surrounding rock in deep rock roadway is the lower rock strengthen and the high geostress. The tensile failure appeared at vault and two side-walls and in the middle of floor at first. Then，the shear failure appeared at spandrel and two base angles. The failure zone extended into the deep area until the roadway is instable. According to the in-situ monitor data，it is concluded that stress in anchor and cable tended to be stable after supporting for two months，as well as the horizontal convergence，vault subsidence and floor heave. It means that the supporting technology works and the stability of soft surrounding rock in deep rock roadway is controlled.
郭建伟1，2，刘泉声3，杨战标2，刘 滨3. 平顶山矿区深部大规模松软围岩巷道支护技术[J]. 岩石力学与工程学报, 2012, 31(s2): 3904-3910.
GUO Jianwei1，2，LIU Quansheng3，YANG Zhanbiao2，LIU Bin3. SUPPORT TECHNOLOGY TO DEEP LARGE-SCALE SOFT SURROUNDING ROCK OF ROADWAY IN
PINGDINGSHAN COAL MINE. , 2012, 31(s2): 3904-3910.
[1] 何满潮，谢和平，彭苏萍，等. 深部开采岩体力学研究[J]. 岩石力学与工程学报，2005，24(16)：2 803–2 813.(HE Manchao，XIE Heping，PENG Suping，et al. Study on rock mechanics in deep mining engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(16)：2 803–2 813.(in Chinese))
[2] 姜耀东，王宏伟，赵毅鑫，等. 极软岩回采巷道互补控制支护技术研究[J]. 岩石力学与工程学报，2009，28(12)：2 383–2 390.(JIANG Yaodong，WANG Hongwei，ZHAO Yixin，et al. Study of comple- mentary supporting technology of extremely soft rock mining roadway[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(12)：2 383–2 390.(in Chinese))
[3] 付国彬. 深井巷道矿山压力控制[M]. 徐州：中国矿业大学出版社，1996：48–52.(FU Guobin. Roadway pressure control of deep mining coal[M]. Xuzhou：China University of Mining and Technology Press，1996：48–52.(in Chinese))
[4] 谷志孟. 我国矿山地压安全控制技术的现状与发展趋势[J]. 岩土力学，1993，14(3)：61–66.(GU Zhimeng. Present situation and development of the control technique for mine ground pressure[J]. Rock and Soil Mechanics，1993，14(3)：61–66.(in Chinese))
[5] 王卫军，彭 刚，黄 俊. 高应力极软破碎岩层巷道高强度耦合支护技术研究[J]. 煤炭学报，2011，36(2)：223–228.(WANG Weijun，PENG Gang，HUANG Jun. Research on high-strength coupling support technology of high stress extremely soft rock roadway[J]. Journal of China Coal Society，2011，36(2)：223–228.(in Chinese))
[6] 张 农，高明仕. 煤巷高强预应力锚杆支护技术与应用[J]. 中国矿业大学学报，2004，33(5)：524–527.(ZHANG Nong，GAO Mingshi. High strength and pretension bolting support of coal roadway and its application[J]. Journal of China University of Mining and Technology，2004，33(5)：524–527.(in Chinese))
[7] 康红普，王金华，林 健. 煤矿巷道支护技术的研究与应用[J]. 煤炭学报，2010，35(11)：1 809–1 814.(KANG Hongpu，WANG Jinhua，LIN Jian. Study and applications of roadway support techniques for coalmines[J]. Journal of China Coal Society，2010，35(11)：1 809–1 814.(in Chinese))
[8] 孙晓明，何满潮，杨晓杰. 深部软岩巷道锚网索耦合支护非线性设计方法研究[J]. 岩土力学，2006，27(7)：1 061–1 065.(SUN Xiaoming，HE Manchao，YANG Xiaojie. Research on nonlinear mechanics design method of bolt-net-anchor coupling support for deep soft rock tunnel[J]. Rock and Soil Mechanics，2006，27(7)：1 061– 1 065.(in Chinese))
[9] 王家臣，杨胜利. 固体充填开采支架与围岩关系研究[J]. 煤炭学报，2010，35(11)：1 821–1 826.(WANG Jiachen，YANG Shengli. Research on support-rock system in solid backfill mining methods[J]. Journal of China Coal Society，2010，35(11)：1 821–1 826.(in Chinese))
[10] 王卫军，李树清，欧阳广斌. 深井煤层巷道围岩控制技术及试验研究[J]. 岩石力学与工程学报，2006，25(10)：2 102–2 107.(WANG Weijun，LI Shuqing，OUYANG Guangbin. Study on technique and test of surrounding rock control of deep shaft coal roadway[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(10)：2 102–2 107.(in Chinese))
[11] 勾攀峰，张振普，韦四江. 不同水平应力作用下巷道围岩破坏特征的物理模拟试验[J]. 煤炭学报，2009，34(10)：1 328–1 332.(GOU Panfeng，ZHANG Zhenpu，WEI Sijiang. Physical simulation test of damage character of surrounding rock under different levels of the horizontal stress[J]. Journal of China Coal Society，2009，34(10)： 1 328–1 332.(in Chinese))
[12] 姜耀东，刘文岗，赵毅鑫，等. 开滦矿区深部开采中巷道围岩稳定性研究[J]. 岩石力学与工程学报，2005，24(11)：1 857–1 862. (JIANG Yaodong，LIU Wengang，ZHAO Yixin，et al. Study on surrounding rock stability of deep mining in Kailuan mining group[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(11)：1 857–1 862.
[13] LIU B，LIU Q S. Surrounding rock classification in deep doadway of coal mine[J]. Advanced Materials Research，2011，181–182：242–246.
[14] 袁 亮，薛俊华，刘泉声，等. 煤矿深部岩巷围岩控制理论与支护技术[J]. 煤炭学报，2011，36(4)：535–543.(YUAN Liang，XUE Junhua，LIU Quansheng，et al. Surrounding rock stability control theory and support technique in deep rock roadway for coal mine[J]. Journal of China Coal Society，2011，36(4)：535–543.(in Chinese))
2012, Vol. 31 
