(1. State Key Laboratory for Geomechanics and Deep Underground Engineering,China University of Mining and Technology (Beijing),Beijing 100083,China;2. School of Mechanics and Civil Engineering,China University of Mining and Technology
(Beijing),Beijing 100083,China;3. Jining No.3 Mine,Yanzhou Coal Mining Group Co.,Ltd.,Jining,Shandong 272000,China;
4. China Overseas Engineering Group Co.,Ltd.,Beijing 100083,China)
Abstract:Taking the deep mining roadway in Jisan coal mine as the research object,the deformation and failure mechanisms of surrounding rock,and the principle and application effect of anti-scouring and releasing energy coupling support technology were studied by combining theoretical analysis,numerical simulation and laboratory test to solve the problems of large deformation of the surrounding rock and easy failure of the support body in deep mining roadway. The results show that large deformation and impact of deep mining roadway in Jisan mining area own to the complex high stress field and its superposition,which make the roof of thick hard sandstone easily accumulate energy. Comparing with the traditional support system which cannot effectively absorb and transform the residual energy of the surrounding rock,the constant resistance large deformation support system can absorb more energy(DF?x) and realize the controlled release of the shape energy of the surrounding rock due to that the constant resistance value(F) and the deformation quantity( ) can be designed independently,which solves the problems of high prestressing force difficult to apply,easy to break and quantitative anti-scour design in the anti-scour support system. The field application results show that the deformation and the advance influence range of the surrounding rock of the constant resistance support are respectively reduced by about 40% and 33% compared with the original support. The research results can provide a reference for similar deep mining roadway support design with an impact tendency.
张 勇1,2,孙晓明1,2,郑有雷3,李江兵1,2,郭志飚1,2,张 飚4. 深部回采巷道防冲释能耦合支护技术及应用[J]. 岩石力学与工程学报, 2019, 38(9): 1860-1869.
ZHANG Yong1,2,SUN Xiaoming1,2,ZHENG Youlei3,LI Jiangbing1,2,GUO Zhibiao1,2,ZHANG Biao4. An anti-punching and energy-releasing coupling support technology in deep mining roadway and its application. , 2019, 38(9): 1860-1869.
[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 Shuping,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,潘一山,姜福兴,等. 我国煤炭开采中的冲击地压机理和防治[J]. 煤炭学报,2014,39(2):205–213.(JIANG Yaodong,PAN Yishan,JIANG Fuxing,et al. State of the art review on mechanism and prevention of coal bumps in China[J]. Journal of China Coal Society,2014,39(2):205–213.(in Chinese))
[3] 赵毅鑫,姜耀东,王 涛,等.“两硬”条件下冲击地压微震信号特征及前兆识别[J]. 煤炭学报,2012,37(12):1 960–1 966.(ZHAO Yixin,JIANG Yaodong,WANG Tao,et al. Features of microseismic events and precursors of rock burst in underground coal mining with hard roof[J]. Journal of China Coal Society,2012,37(12):1 960–1 966.(in Chinese))
[4] 王存文,姜福兴,王 平,等. 煤柱诱发冲击地压的微震事件分布特征与力学机理[J]. 煤炭学报,2009,34(9):1 169–1 173.(WANG Cunwen,JIANG Fuxing,WANG Ping,et al. Microseismic events distribution characteristics and mechanical mechanisms of rock bursting induced by a coal pillar[J]. Journal of China Coal Society,2009,34(9):1 169–1 173.(in Chinese))
[5] 姜福兴,王雨霄,李 明,等. 上保护层煤柱引发被保护层冲击机理研究[J]. 岩土工程学报,2017,39(9):1 689–1 696.(JIANG Fuxing,WANG Yuxiao,LI Ming,et al. Mechanism of rockburst occurring in protected coal seam induced by coal pillar of protective coal seam[J]. Chinese Journal of Geotechnical Engineering,2017,39(9):1 689–1 696.(in Chinese))
[6] XUE Y G,LI Z Q,LI S C,et al. Prediction of rock burst in underground caverns based on rough set and extensible comprehensive evaluation[J]. Bulletin on Engineering Geology and Environment,2019,78(1):417–429.
[7] CAI W,DOU L M,ZHANG M,et al. A fuzzy comprehensive evaluation methodology for rock burst forecasting using microseismic monitoring[J]. Tunnelling and Underground Space Technology,2018,80:232–245.
[8] TAJDUS A,CALA M,TAJDUS K. Seismicity and rock burst hazard assessment in fault zone:a case study[J]. Archives of Mining Sciences,2018,63(3):747–765.
[9] 潘一山,肖永惠,李忠华,等. 冲击地压矿井巷道支护理论研究及应用[J]. 煤炭学报,2014,39(2):222–228.(PAN Yishan,XIAO Yonghui,LI Zonghua,et al. Study of tunnel support theory of rockburst in coal mine and its application[J]. Journal of China Coal Society,2014,39(2):222–228.(in Chinese))
[10] 王爱文,潘一山,赵宝友,等. 防冲吸能锚杆(索)的静动态力学特性与现场试验研究[J]. 岩土工程学报,2017,39(7):1 292–1 301. (WANG Aiwen,PAN Yishan,ZHAO Baoyou,et al. Static and dynamic mechanical properties of energy absorption bolts(cable) and field tests[J]. Chinese Journal of Geotechnical Engineering,2017,39(7):1 292–1 301.(in Chinese))
[11] 姚精明,王 路,闫永业,等. 冲击地压巷道桁架锚索支护原理与实践[J]. 采矿与安全工程学报,2017,34(5):535–541.(YAO Jingming,WANG Lu,YAN Yongye,et al. The supporting principle of truss cable in the rock burst roadway and its application[J]. Journal of Mining and Safety Engineering,2017,34(5):535–541.(in Chinese))
[12] 康红普,吴拥政,何 杰,等. 深部冲击地压巷道锚杆支护作用研究与实践[J]. 煤炭学报,2015,40(10):2 225–2 233.(KANG Hongpu,WU Yongzheng,HE Jie,et al. Rock bolting performance and field practice in deep roadway with rock burst[J]. Journal of China Coal Society,2015,40(10):2 225–2 233.(in Chinese))
[13] 何满潮,王 炯,孙晓明,等. 负泊松比效应锚索的力学特性及其在冲击地压防治中的应用研究[J]. 煤炭学报,2014,39(2):214– 221.(HE Manchao,WANG Jiong,SUN Xiaoming,et al. Mechanics characteristics and applications of prevention and control rock bursts of the negative Poisson′s ratio effect anchor[J]. Journal of China Coal Society,2014,39(2):214–221.(in Chinese))
[14] 孙晓明,王 冬,王 聪,等. 恒阻大变形锚杆拉伸力学性能及其应用研究[J]. 岩石力学与工程学报,2014,33(9):1 765–1 771. (SUN Xiaoming,WANG Dong,WANG Cong,et al. Tensile properties and application of constant resistance and large deformation bolts[J]. Chinese Journal of Rock Mechanics and Engineering,2014,33(9):1 765–1 771.(in Chinese))
[15] SUN X M,ZHANG Y,WANG D,et al. Mechanical properties and supporting effect of CRLD bolts under static pull test conditions[J]. International Journal of Minerals,Metallurgy and Materials,2017,24(1):1–9.
[16] HE M C,GONG W L,WANG J,et al. Development of a novel energy-absorbing bolt with extraordinarily large elongation and constant resistance[J]. International Journal of Rock Mechanics and Mining Sciences,2014,67(4):29–42.
[17] 吕祥锋. 刚–柔耦合支护防治冲击地压机理研究[博士学位论文][D]. 阜新:辽宁工程技术大学,2011.(LV Xiangfeng. Rockburst prevention mechanism of rigid-flexible coupling support[Ph. D. Thesis][D]. Fuxin:Liaoning Technical University,2011.(in Chinese))
[18] 鞠文君. 冲击矿压巷道支护能量校核设计法[J]. 煤矿开采,2011,16(3):81–83.(JU Wenjun. Energy checking design method of roadway with rock-burst danger[J]. Coal Mining Technology,2011,16(3):81–83.(in Chinese))
[19] 高明仕,赵一超,温颖远,等. 震源扰动型巷道冲击矿压破坏力能准则及实践[J]. 煤炭学报,2016,41(4):808–814.(GAO Mingshi,ZHAO Yichao,WEN Yingyuan,et al. Stress and energy criterion of the roadway destruction subjected to disturbance type rock burst and its practice[J]. Journal of China Coal Society,2016,41(4):808–814. (in Chinese))
[20] 王桂峰,窦林名,李振雷,等. 支护防冲能力计算及微震反求支护参数可行性分析[J]. 岩石力学与工程学报,2015,34(增2):4 125–4 131.(WANG Guifeng,DOU Linming,LI Zhenlei,et al. Anti-impact abilities calculation and feasibility analysis of seismic reverse for supporting[J]. Chinese Journal of Rock Mechanics and Engineering,2015,34(Supp.2):4 125–4 131.(in Chinese))