煤矿深部岩巷围岩稳定与支护对策  

STUDY ON STABILITY OF DEEP ROCK ROADWAYS IN COAL MINES AND THEIR SUPPORT MEASURES

作　　者：刘泉声[1] 张华[1] 林涛 

机构地区：[1]中国科学院武汉岩土力学研究所,武汉430071 [2]武汉市武昌区建设局,武汉430061

出　　处：《岩石力学与工程学报》2004年第21期3732-3737,共6页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家重点基础研究发展规划(973)项目(2002CB412704);国家自然科学基金(40172098);中国科学院武汉岩土力学研究所领域前沿基金(Q110206)联合资助课题。

摘　　要：在淮南矿区深部岩石巷道地应力场和支护研究的基础上,提出了煤矿深部岩巷围岩稳定受高地应力、高渗透压力和温度梯度影响的支护对策。试验和理论分析表明,采用与围岩内部潜在滑移面呈±22.5°布锚方法,运用具高初锚力的超高强锚杆支护,辅助以注浆固结、能量释放等措施可有效控制围岩稳定。Based on model test, in-situ investigation, and theoretical analyses, the influencing factors on stability of rock mass surrounding coal-mine roadways 800-1000 m deep are studied. The mechanism for effects of high crustal stress, high-level permeable pressure, and high temperature gradient on the stability of deep roadways is concluded, and corresponding support method and technology are carried out which include a kind of bolts with initial support force of 30-50 kN and peak support force higher than 300 kN and their arrangement in surrounding rock, bottom bolts and their construction tools, fiber-optic monitoring technology for bolt stress for long term, and grouting technology for sealing fractures, cutting seepage off and reinforcing rock mass.

关 键 词：岩巷 深部 煤矿 围岩稳定 锚杆支护 巷道 淮南矿区 超高强 固结 滑移面 

分 类 号：O35[理学—流体力学] TD353[理学—力学]