(1. School of Civil and Environmental Engineering，University of Science and Technology Beijing，Beijing 100083，China； 2. College of Safety Engineering，North China Institute of Science and Technology，Beijing 101601，China； 3. Shandong Xinjulong Energy Limited Liability Company，Heze，Shandong 274918，China)
Abstract：Rock burst and large deformation coordination controlling is a common problem of thick coal seam in deep mines. The mechanism of rock burst and large deformation coordination controlling in thick coal seam of deep shaft was studied through field monitoring and theoretical analysis，and the mechanical model of gob-side entry lateral roof secondary fracture was set up. Following results were obtained：(1) In the condition of Xinjulong coal mine，the pre-relief borehole with diameter of 120 mm，depth of 25 m and spacing of 1 m was implemented，the effective pressure-relief protection area width is 10–15 m. (2) The mechanism of gob-side entry large deformation of thick coal seam in deep shaft is mainly caused by secondary breakage of roof and rotation induced by intensively venting the pulverized coal，and verified by theory. (3) The mechanism of rock burst and large deformation coordination controlling in thick coal seam of deep shaft is to determine the reasonable pressure-relief parameters. By intensively venting pulverized coal to release the expansion deformation of surrounding rock，the pressure of roadway surrounding rock is also decreased. Meanwhile，the damage level of surrounding rock structure is reduced. Field practice shows that by optimizing the parameters of supporting technology and pressure-relief，the problem of large deformation of gob-side entry can be resolved to a certain extent. The results can provide some references for rock burst and large deformation coordination controlling in thick coal seam of deep shaft.
朱斯陶1，姜福兴1，刘金海2，谭文峰3，徐 波3，程祥萌3，陈 强3. 深井厚煤层冲击地压与大变形协调控制机制研究[J]. 岩石力学与工程学报, 2015, 34(S2): 4262-4268.
ZHU Sitao1，JIANG Fuxing1，LIU Jinhai2，TAN Wenfeng3，XU Bo3，CHENG Xiangmeng3，CHEN Qiang3. RESEARCH ON MECHANISM OF ROCK BURST AND LARGE DEFORMATION COORDINATION CONTROLLING IN THICK COAL SEAM OF DEEP SHAFT. , 2015, 34(S2): 4262-4268.
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2015, Vol. 34 
