Abstract：To research the risk of coal overall instability of isolated working face with irregular gobs on both sides，the isolated working face 3206 of a mine in Shandong as the engineering background was studied，and the dynamic process of roof structure in irregular gobs on both sides during the period of mining working face was analyzed in this paper. Based on the technique of microseismic monitoring with high accuracy，the amount of overburden movement angle and gangue contacting angle over the gobs was got. Meanwhile，the calculative formula of bearing pressure on isolated working face of coal and the analytic method of its instability was proposed. The results showed that stress would reach a maximum when the hanging roof structure turned to the semi-hanging roof structure over gobs，while stress would reduce when the width of gobs was large enough which indicated the gobs had came into a full-mining level. Moreover，the instability coefficient in various stages was obtained during the mining based on the geological conditions of the working face 3206. The analysis results showed that: the instability would occur quite possibly when the working face was in the process of mining. However，it could be mined safely by taking the method of drilling relief with large diameter to prevent the occurrence of rock burst. Ultimately，the correctness of this paper has been confirmed by the mining practice.
姜福兴，成 功，冯 宇，王存文，徐勇勇. 两侧不规则采空区孤岛工作面煤体整体冲击失稳研究[J]. 岩石力学与工程学报, 2015, 34(S2): 4164-4170.
JIANG Fuxing，CHENG Gong，FENG Yu，WANG Cunwen，XU Yongyong. RESEARCH ON COAL OVERALL INSTABILITY OF ISOLATED WORKING FACE WITH IRREGULAR GOBS ON BOTH SIDES. , 2015, 34(S2): 4164-4170.
王存文，姜福兴，孙庆国，等. 基于覆岩空间结构理论的冲击地压预测技术及应用[J].煤炭学报，2009，34(2)：150-155.(WANG Cunwen，JIANG Fuxing，SUN Qingguo，et al.The forecasting method ofrock-burst and the application based on overlying multi-strata spatial structure theory[J].Journal of China Coal Society，2009，34(2)：150-155.(in Chinese))
[2]
窦林名，何学秋. 冲击矿压防治理论及技术[M].徐州：中国矿业大学出版社，2001：10-32.(DOULinming，HE Xueqiu. Theoryand technology of rock burst prevention[M].Xuzhou：China University of Mining and Technology Press，2001：10-32.(in Chinese))
[3]
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，2006：1-5.(DOULinming，ZHANGCongguo，YANG Siguang，et al.Coal mining bumping disaster prevention and control[M]. Xuzhou：China University of Mining and Technology Press，2006：1-5.(in Chinese))
[4]
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.(JIANGFuxing，XUNLuo，YANGShuhua. 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))
[5]
成云海，姜福兴，张兴民，等. 微震监测揭示的“C”型采场空间结构及应力场[J]. 岩石力学与工程学报，2007，26(1)：102-107. (CHENGYunhai，JIANGFuxing，ZHANG Xingmin，et al. C-shaped strata spatial structure and stress field in long wall face monitored by microseismic monitoring[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(1)：102-107.(in Chinese))
[6]
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.(DOULinming，HEYe，ZHANG Weidong. Hazards of rock burst in island coal face and its control[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(11)：1 866-1869.(in Chinese))
[7]
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，2000：23-25.(QIAN Minggao，MIAOXiexing，XU Jialin，et al. Theory of key stratum in ground control[M]. Xuzhou：China University of Mining and Technology Press，2000：23-25.(in Chinese))
[8]
浦 海，缪协兴. 采动覆岩中关键层运动对围岩支承压力分布的影响[J]. 岩石力学与工程学报，2002，21(增2)：2 366-2 369.(PU Hai，MIAO Xiexing. Effect of key strata movement on mining-induced overlying strata on the abutment pressure distribution in surrounding rock[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(Supp.2)：2 366-2 369.(in Chinese))
[9]
于元林. 大采高孤岛采场覆岩运动破坏特征和矿压显现研究[硕士学位论文][D]. 合肥：安徽理工大学，2007.(YUYuanlin. The study of overburden breakage character and phenomena of ground pressure in the great mining height of theisolated islandstope[M. S. Thesis][D]. Hefei：Anhui University of Science and Technology，2010.(in Chinese))
[10]
齐庆新，窦林名. 冲击地压理论与技术[M]. 徐州：中国矿业大学出版社，2008：23-28.(QIQingxin，DOULinming. Theory and technology of rock burst[M]. Xuzhou：China University of Mining and Technology Press，2008：23-28.(in Chinese))
[11]
钱鸣高，石平五，许家林. 矿山压力与岩层控制[M]. 徐州：中国矿业大学出版社，2010：42-45.(QIANMinggao，SHIWuping，XU Jialin. Mine pressure and strata control[M]. Xuzhou：China University of Mining and TechnologyPress，2010：42-45.(in Chinese))
[12]
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.(JIANGFuxing，YANG Shuhua，XUNLuo. 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.(in Chinese))
[13]
史 红，姜福兴. 基于微地震监测的覆岩多层空间结构倾向支承压力研究[J]. 岩石力学与工程学报，2008，27(增1)：3274-3280.(SHI Hong，JIANG Fuxing. Study on abutment pressure rule of overlying strata spatial structures based on microseismic monitoring[J].Chinese Journal of Rock Mechanics and Engineering，2008，27(Supp.1)：3274-3280.(in Chinese))
[14]
宋振骐，卢国志，夏洪春. 一种计算采场支承压力分布的新算法[J]. 山东科技大学学报，2006，25(3)：1-4.(SONGZhenqi，LU Guozhi，XIA Hongchun. A new algorithm for calculating the distribution of face abutment pressure[J]. Journal of Shandong University of Science and Technology，2006，25(3)：1-4.(in Chinese))
[15]
苏承东，翟新献，李永明. 煤样三轴压缩下变形和强度分析[J]. 岩石力学与工程学报2006，25(增1)：2 963-2 968.(SU Chengdong，ZHAIXinxian，LI Yongming. Study on deformation and strength of coal samples in triaxial compression[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(Supp.1)：2 963-2 968(in Chinese))
[16]
于正兴，姜福兴，桂 兵. 冲击地压危险性的宏观评价方法在“孤岛”工作面的应用[J]. 矿业安全与环保，2011，38(5)：30-32.(YU Zhengxing，JIANGFuxing，GUIbing. Macroscopic evaluation method of bumping of danger areas in island coal face[J].Mining SafetyandEnvironmental Protection，2011，38(5)：30-32.(in Chinese))
2015, Vol. 34 
