孙村煤矿-1 100m水平深部煤岩冲击倾向性组合试验研究  

BURST-PRONE EXPERIMENTS OF COAL-ROCK COMBINATION AT -1 100 m LEVEL IN SUNCUN COAL MINE

作　　者：刘波[1] 杨仁树[1] 郭东明[1] 张殿振[2] 

机构地区：[1]中国矿业大学(北京校区)建筑工程系,北京100083 [2]新汶矿业集团有限责任孙村煤矿,新泰271233

出　　处：《岩石力学与工程学报》2004年第14期2402-2408,共7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(2002CB412701);国家自然科学基金项目(50304012);教育部高等学校优秀青年教师教学科研奖励计划(2000-91)资助课题。

摘　　要：冲击地压灾害防治是深部开采面临的重要难题之一。对孙村煤矿-1100m水平(埋深1310m)延伸时煤岩的冲击倾向性进行了试验研究。为探求煤-岩层相对厚度变化对深部煤岩体冲击倾向的影响,进行了7组不同高度比的煤岩组合试件力学性质与动态破坏特性的试验研究,获得了深部煤岩冲击倾向性评判结果;研究了浸水对深部煤岩强度与冲击倾向的影响,为该矿防治冲击地压提供了试验依据。Rock bursts are violent failures in the ground, which break rock and expel it into excavation. Rock bursts have caused numerous casualty accidents and damages of underground workings, so the control of rock bursts is one major problem for deep underground mining from the both aspects of safety and economy. The Suncun Coal Mine is one of the deepest underground coal mines in China. The burst-prone experiments of coal-rock combinations at -1100 m level (buried depth 1310 m) in Suncun Coal Mine were made in lab. In order to investigate the rock burst-prone of deep coal seams of different thickness, 7 groups of coal-rock combination samples with different height ratio were tested to study their mechanic properties and dynamic failure behaviors. The validity of research proposal is confirmed by application cases and the coal-rock burst-prone identification results for surrounding rocks at -1100 m level we obtained. According to the experimental results of strength change of the coal-rock samples before and after water immersion, the countermeasures for rock bursts in ultra-deep coal mining conditions are proposed. More than 300 coal-rock samples were prepared for the burst-prone experiments. The tests show that the burst-prone tendency potentially increases with the increase of height ratio of roof rock to coal.

关 键 词：采矿工程 深部围岩 冲击倾向性 复合试件 浸水 

分 类 号：TD324.2[矿业工程—矿井建设]