孤岛顶煤综放采场冲击矿压形成机制及控制技术
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摘要
应用覆岩空间结构学术观点对孤岛顶煤综放采场冲击矿压机制及其控制技术进行研究。根据覆岩关键层的岩性、层位、范围等因素,覆岩关键层空间结构分为覆岩空间大结构和基本顶有限矿压结构。孤岛顶煤采场冲击矿压发生机制:①孤岛顶煤综放采场型空间大结构形成过程是集中压力逐渐增加的过程,是该时间段发生冲击矿压的力源;②采场基本顶形成最下位型空间结构后,随着工作面推进,基本顶块体产生滑落失稳,造成工作面冲击矿压现象。通过对分段来压理论、基本顶结构失稳理论和坚硬顶板预断裂理论对覆岩关键层空间结构运动的控制作用研究,提出采用覆岩空间结构理论分析、分阶段降低放煤率、坚硬覆岩预爆泄压技术、覆岩坚硬岩层破裂的微地震监测技术等方式方法预防冲击矿压的发生。
Study of the rock burst mechanism and its control technology in sublevel caving mining face under isolated top coal is done by applying overlying strata spatial structure academic viewpoint.According to the key stratum lithology、layer place、range and other factors,the key stratum spacial structures are divided into big structure of overlying strata and main roof structure leading to limited pressure.rockburst mechanism in island top coal stope is: ① formation process of-shaped spatial structure in sublevel caving mining face is the process of gradually increasing pressure,and that is the rockburst power source in this period;②After the formation of the lowest-shaped spatial structure of the main roof,with the face advancing,the main roof block slides and which cause the rock burst phenomena.Through the study of the controlling effect on the key stratum spatial structure movement by segmented pressure theory,the instability of basic roof structure theory and hard roof prefracture theory,the ways and means of overlying strata spatial structure theory analyzing and reducing the rate of caving in different phases,hard overlying strata prefracture technology,microseismic monitoring technology overburden rock hard rock rupture of to prevent rock burst occurred are proposed.
引文
[1]徐永圻.煤矿开采学[M].徐州:中国矿业大学出版社,2009.
    [2]姜福兴,汪华君,吴士良,等.综放采场支架异常压力的力源研究[J].煤炭学报,2004,29(5):523-526.JIANG Fu-xing,WANG Hua-jun,WU Shi-liang,et al.Study on the abnormal pressure on support in fully mechanized sublevel caving face[J].Journal of China Coal Society,2004,29(5):523-526.
    [3]姜福兴.采场覆岩空间结构观点及其应用研究[J].采矿与安全工程学报,2006,23(1):30-33.JIANG Fu-xing.Viewpoint of spatial structures of overlying strata and its application in coal mine[J].Journal of Mining&Safety Engineering,2006,23(1):30-33.
    [4]姜福兴,王同旭,汪华君,等.四面采空孤岛综放采场矿压控制的研究与实践[J].岩土工程学报,2005,27(9):1101-1104.JIANG Fu-xing,WANG Tong-xu,WANG Hua-jun,et al.Research and practice on pressure control of sub-level longwall face surrounded by mined areas[J].Chinese Journal of Geotechnical Engineering,2005,27(9):1101-1104.
    [5]汪华君.四面采空采场型覆岩多层空间结构运动及控制研究[博士学位论文D].青岛:山东科技大学,2006.
    [6]姜福兴,张兴民,杨淑华.长壁采场覆岩空间结构探讨[J].岩石力学与工程学报,2006,25(5):975-984.JIANG Fu-xing,ZHANG Xing-min,YANG Shu-hua.Discussion on overlying strata spatial structures of longwall in coal mine[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(5):975-984.
    [7]成云海,姜福兴,张兴民,等.微震监测揭示的C型采场空间结构应力场[J].岩石力学与工程学报,2007,26(1):102-107.CHENG Yun-hai,JIANG Fu-xing,ZHANG Xing-min,et al.C-shaped strata spatial structure and stress field in longwall face monitored by microseismic monitoring[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(1):102-107.
    [8]姜福兴,杨淑华,XUN Luo.微地震监测揭示的采场围岩空间破裂形态[J].煤炭学报,2003,28(4):357-360.JIANG Fu-xing,YANG Shu-hua,XUN Luo.Spatial fracturing progresses of surrounding rock masses in longwall face monitored by microseimic monitoring techniques[J].Journal of China Coal Society,2003,28(4):357-360.
    [9]姜福兴,XUN Luo,杨淑华.采场覆岩空间破裂与采动应力场的微震探测研究[J].岩土工程学报,2003,25(1):23-25.JIANG Fu-xing,XUN Luo,YANG Shu-hua.Study on microseismic monitoring for spatial structure of overlying strata and mining pressure field in longwall face[J].Chinese Journal of Geotechnical Engineering,2003,25(1):23-25.
    [10]LUO XUN,JIANG F X,YANG S H.A trial of microseismic monitoring of coal bumps at an underground coal mine in China[C]//Sixth International Symposium on Rockburst and Seismicity in Mines Proceedings.[S.l.]:Australia Center for Geomechanics,2005:145-147.
    [11]姜福兴.矿山压力与岩层控制[M].北京:煤炭工业出版社,2004.
    [12]史红,姜福兴,王同旭.顶板结构稳定性与顶煤放出率的动态关系探讨[J].矿山压力与顶板管理,2005,22(1):80-83.
    [13]史红.综采放顶煤采场厚层坚硬顶板稳定性分析及应用[博士学位论文D].青岛:山东科技大学,2005.

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