Prevention of rockburst in large island longwall panels induced by instability of super-thick magmatic strata
YANG Weili1，2，JIANG Fuxing2，YANG Peng2，3，ZHAI Minghua4，WANG Yongbao4， LIU Weixin4，ZHANG Jiani4
(1. Architectural Engineering Department，Zhongyuan University of Technology，Zhengzhou，Henan 450007，China； 2. Civil and Environmental Engineering School，University of Science and Technology Beijing，Beijing 100083，China； 3. Beijing Key Laboratory of Information Service Engineering，Beijing Union University，Beijing 100101，China； 4. Shandong Energy Group Co.，Ltd.，Jinan，Shandong 250014，China)
Rockbursts induced by instability of super-thick magmatic strata presents a serious threat to mine safety and production. This paper investigates the rockburst mechanism induced by instability of super-thick magmatic strata in Wanglou coal mine using field monitoring，numerical simulation and theoretical analysis. The main results are as follows (1) The rockbursts in island longwall panels induced by instability of super-thick magmatic strata can be classified into two types，spontaneous type and induced type. Spontaneous rockbursts occur due to the overstressing of the instable super-thick magmatic strata and the overburden. Induced rockbursts occur due to the dynamic loading from the movement of super-thick magmatic strata. (2) The criterion for overall burst instability of island longwall panels was proposed. Using the criterion，LW12310 at Wanglou coal mine was designed into large-width island longwall panel to transform the overall rockbursts into local rockbursts. (3) Corresponding measures were developed according to local rockburst mechanism，which agreed well with microseismic and stress monitoring results. The research results provide a practical approach for rockburst prevention of island longwall panels under super-thick magmatic strata.
杨伟利1，2，姜福兴2，杨 鹏2，3，翟明华4，王永宝4，刘维信4，张假妮4. 巨厚岩浆岩失稳的大孤岛工作面防冲研究[J]. 岩石力学与工程学报, 2017, 36(S1): 3382-3391.
YANG Weili1，2，JIANG Fuxing2，YANG Peng2，3，ZHAI Minghua4，WANG Yongbao4，. Prevention of rockburst in large island longwall panels induced by instability of super-thick magmatic strata. , 2017, 36(S1): 3382-3391.
窦林名，刘贞堂，曹胜根，等. 坚硬顶板对冲击矿压危险的影响分析[J]. 煤矿开采，2003，8(2)：58-66.(DOU Linming，LIU Zhentang，CAO Shenggen，et al. Analysis of the influence on rock burst caused by hard roof[J]. Coal Mining Technology，2003，8(2)：58-66.(in Chinese))
[2]
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)：1 260-1 265.(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)：1 260-1 265.(in Chinese))
[3]
姜福兴，姚顺利，魏全德，等. 矿震诱发型冲击地压临场预警机制及应用研究[J]. 岩石力学与工程学报，2015，34(增1)：3 372-3 380. (JANG Fuxing，YAO Shunli，WEI Quande，et al. Study of site forewarn mechanism of rock burst induced by shock bump and its application[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(Supp.1)：3 372-3 380.(in Chinese))
[4]
李宝富，李小军，任永康. 采场上覆巨厚砾岩层运动对冲击地压诱因的实验与理论研究[J]. 煤炭学报，2014，39(增1)：31-37.(LI Baofu，LI Xiaojun，REN Yongkang. Experimental and theoretical study on rock burst inducement by movement of super-thick conglemerrate strata overlying working face[J]. Journal of China Coal Society，2014，39(Supp.1)：31-37.(in Chinese))
[5]
蒋金泉，张培鹏，聂礼生，等. 高位硬厚岩层破断规律及其动力响应分析[J]. 岩石力学与工程学报，2014，33(7)：1 366- 1 374.(JIANG Jinquan，ZHANG Peipeng，NIE Lisheng，et al. Fracturing and dynamic response of high and thick strata of hard rocks[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(7)：1 366-1 374.(in Chinese))
[6]
窦林名，许家林，陆菜平，等. 离层注浆控制冲击矿压危险机制探讨[J]. 中国矿业大学学报，2004，33(2)：145-149.(DOU Linming，XU Jialin，LU Caiping，et al. Study of controlling rock burst with grouting bed separation[J]. Journal of China University of Mining and Technology，2004，33(2)：145-149.(in Chinese))
[7]
姜福兴，魏全德，王存文，等. 巨厚砾岩与逆冲断层控制型特厚煤层冲击地压机制分析[J]. 煤炭学报，2014，39(7)：1 191- 1 196.(JIANG Fuxing，WEI Quande，WANG Cunwen，et al. Analysis of rock burst mechanism in extra-thick coal seam controlled by huge thick conglomerate and thrust fault[J]. Journal of China Coal Society，2014，39(7)：1 191-1 196.(in Chinese))
[8]
齐庆新，欧阳振华，赵善坤，等. 我国冲击地压矿井类型及防治方法研究[J]. 煤炭科学技术，2014，42(10)：1-5.(QI Qingxin，OUYANG Zhenhua，ZHAO Shankun，et al. Study on types of rock burst mine and prevention methods in China[J]. Coal Science and Technology，2014，42(10)：1-5.(in Chinese))
[9]
蒋金泉，张培鹏，潘立友，等. 重复采动下上覆高位巨厚岩层微震分布特征研究[J]. 煤炭科学技术，2015，43(1)：21-24.(JIANG Jinquan，ZHANG Peipeng，PAN Liyou，et al. Study on micro-seismic distribution characteristics of high-position and ultra thick hard overlying strata under repeated mining[J]. Coal Science and Technology，2015，43(1)：21-24.(in Chinese))
[10]
姚顺利，孟广峰，张胜泉，等. 巨厚岩层稳定性与冲击地压防治关系研究[J]. 煤矿安全，2015，46(5)：63-66.(YAO Shunli，MENG Guangfeng，ZHANG Shengquan，et al. Study on relation between stability of extra-thick rock stratum and rock burst prevention and control[J]. Safety in Coal Mines，2015，46(5)：63-66.(in Chinese))
[11]
潘一山，贾宝新，王 帅，等. 矿震震波传播规律的三维模型及其应用[J]. 煤炭学报，2012，37(11)：1 810-1 814.(PAN Yishan，JIA Baoxin，WANG Shuai，et al. Three-dimension of model and its application mines seismic wave propagation[J]. Journal of China Coal Society，2012，37(11)：1 810-1 814.(in Chinese))
[12]
刘金海，翟明华，郭信山，等. 震动场、应力场联合监测冲击地压的理论与应用[J]. 煤炭学报，2014，39(2)：353-363.(LIU Jinhai，ZHAI Minghua，GUO Xinshan，et al. Theory of coal burst monitoring using technology of vibration field combined with stress field and its application[J]. Journal of China Coal Society，2014，39(2)：353-363.(in Chinese))
[13]
杨淑华，姜福兴. 综采放顶煤支架受力与顶板结构的关系探讨[J]. 岩石力学与工程学报，1999，18(3)：287-290.(YANG Shuhua，JIANG Fuxing. Study on the relationship between support load and roof structure in top coal caving[J]. Chinese Journal of Rock Mechanics and Engineering，1999，18(3)：287-290.(in Chinese))
[14]
杨伟利，姜福兴，杨 鹏. 煤矿区域孤岛工作面极限采出率研究[J]. 煤矿安全，2015，46(10)：36-39.(YANG Weili，JIANG Fuxing，YANG Peng. Study on limit recovery ratio of regional island coal face in coal mine[J]. Safety in Coal Mines，2015，46(10)：36-39.(in Chinese))
[15]
冯 宇，姜福兴，李京达. 孤岛工作面围岩整体失稳冲击危险性评估方法[J]. 煤炭学报，2015，40(5)：1 001-1 007.(FENG Yu，JIANG Fuxing，LI Jingda. Evaluation method of rock burst hazard induced by overall instability of island coal face[J]. Journal of China Coal Society，2015，40(5)：1 001-1 007.(in Chinese))
[16]
魏全德. 巨厚砾岩下特厚煤层冲击地压发生机理及防治研究[博士学位论文][D]. 北京：北京科技大学，2015.(WEI Quande. Mechanism and prevention and control of rockburst in extra thick coal seams under super thick conglomerate stratum[Ph. D. Thesis][D]. Beijing：University of Science and Technology Beijing，2015.(in Chinese))
2017, Vol. 36 
