煤矿覆岩空间结构OX-F-T演化规律研究

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Abstract The rupture and movement scope of overlying strata increase sharply since the high strength and rapid exploitation of the longwall mining faces；and the spatial structure formed by fractured strata becomes much more complex. The overlying strata would move and interact coordinately when more workfaces exist；hence leading to mining dynamic disasters that defined as spatial structure instability in this paper. Based on the boundary conditions，three basic forms that named OX，F and T structure are identified，respectively. The OX-F-T evolution of the overlying strata is presented that the O-X fracture is the elemental structure of overlying strata and also the boundary of adjacent workface，one side is OX constitute F structure，and both side with OX is T structure. The characteristics and detailed classifications for each type are elaborated. The microseismic system is used for on-site monitoring，single，double and isolated workfaces that represent the OX，F and T structure are selected respectively to research the distribution rules of seismic events；the results confirmed the OX-F-T spatial structure feature. At last，specialized methods are proposed targeted to workfaces with different spatial structures. The research results provide theoretical guidance for dynamic disaster prevention and control in coal mines.

Key words： mining engineering spatial structure of overlying strata dynamic disaster key strata fully mechanized mining with sublevel caving microseismicity

Received: 10 October 2011

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https://rockmech.whrsm.ac.cn/EN/Y2012/V31/I3/453

[1] 王家臣，富强. 低位综放开采顶煤放出的散体介质流理论与应用[J]. 煤炭学报，2002，27(4)：337–341.(WANG Jiachen，FU Qiang. The loose medium flow field theory and its application to the longwall top-coal caving[J]. Journal of China Coal Society，2002，27(4)：337–341.(in Chinese)) [2] 闫少宏，尹希文. 大采高综放开采几个理论问题的研究[J]. 煤炭学报，2008，33(5)：481–484.(YAN Shaohong，YIN Xiwen. Discussing about the main theoretical problems of longwall with top coal caving[J]. Journal of China Coal Society，2008，33(5)：481–484.(in Chinese)) [3] 柏建彪. 综放沿空掘巷围岩稳定性原理及控制技术研究[博士学位论文][D]. 徐州：中国矿业大学，2005.(BAI Jianbiao. Study on stability and control of roadway driven along next goaf for fully-mechanized top-coal caving face[Ph. D. Thesis][D]. Xuzhou：China University of Mining and Technology，2005.(in Chinese)) [4] 蒋金泉，张开智. 综放开采矿震的成因及防治对策[J]. 岩石力学与工程学报，2006，25(增1)：3 277–3 282.(JIANG Jinquan，ZHANG Kaizhi. Cause and control method of mine earthquake in fully mechanized top coal caving mining[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(Supp.1)：3 277–3 282.(in Chinese)) [5] 姜福兴，XUN L，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 Fuxing，XUN L，YANG Shuhua. 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.(in Chinese)) [6] 贺虎，窦林名，巩思园，等. 覆岩关键层运动诱发冲击的规律研究[J]. 岩土工程学报，2010，32(8)：1 261–1 265.(HE Hu，DOU Linming，GONG Siyuan，et al. Rock burst rules induced by cracking of overlying key stratum[J]. Chinese Journal of Geotechnical Engineering，2010，32(8)：1 261–1 265.(in Chinese)) [7] DOU L M，LU C P，MU Z L，et al. Prevention and forecasting of rock burst hazards in coal mines[J]. Mining Science and Technology，2009，19(5)：585–591. [8] 窦林名，赵从国，杨思光，等. 煤矿开采冲击矿压灾害防治[M]. 徐州：中国矿业大学出版社，2006：7–10.(DOU Linming，ZHAO Congguo，YANG Siguang，et al. Prevention and control of rock burst in coal mine[M]. Xuzhou：China University of Mining and Technology Press，2006：7–10.(in Chinese)) [9] 钱鸣高，缪协兴，许家林，等. 岩层控制的关键层理论[M]. 徐州：中国矿业大学出版社，2000：85–88.(QIAN Minggao，MIAO Xiexing，XU Jialin，et al. Key strata theory in ground control[M]. Xuzhou：China University of Mining and Technology Press，2000：85–88.(in Chinese)) [10] 钱鸣高，石平五. 矿山压力与岩层控制[M]. 徐州：中国矿业大学出版社，2003：91–96.(QIAN Minggao，SHI Pingwu. Ground pressure and strata control[M]. Xuzhou：China University of Mining and Technology Press，2003：91–96.(in Chinese)) [11] 史红，姜福兴. 采场上覆大厚度坚硬岩层破断规律的力学分析[J]. 岩石力学与工程学报，2004，23(18)：3 066–3 069.(SHI Hong，JIANG Fuxing. Mechanical analysis of rupture regularity of hard and massive overlying strata of longwall face[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(18)：3 066–3 069.(in Chinese)) [12] 姜福兴，张兴民，杨淑华，等. 长壁采场覆岩空间结构探讨[J]. 岩石力学与工程学报，2006，25(3)：979–984.(JIANG Fuxing，ZHANG Xingmin，YANG Shuhua，et al. Discussion on overlying strata spatial structures of longwall in coal mine[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(3)：979–984.(in Chinese)) [13] 谢和平，段法兵，周宏伟，等. 条带煤柱稳定性理论与分析方法研究进展[J]. 中国矿业，1998，7(5)：37–41.(XIE Heping，DUAN Fabing，ZHOU Hongwei，et al. Recent developments of theory and analysis methods of strip pillar stability[J]. China Mining Magazine， 1998，7(5)：37–41.(in Chinese)) [14] 窦林名，何烨，张卫东. 孤岛工作面冲击矿压危险及其控制[J]. 岩石力学与工程学报，2003，22(11)：1 866–1 869.(DOU Linming，HE Ye，ZHANG Weidong. Hazards of rock burst in island coal face and its control[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(11)：1 866–1 869.(in Chinese))