Mechanisms of rock burst instability in deep coal roadway with high three-way stress difference area
LIU Guolei1，LIANG Wenzhao2，3，MA Qiufeng1，WANG Zedong4，QU Xiaocheng5
(1. School of Resources and Environmental Engineering，Shandong University of Technology，Zibo，Shandong 255022，China；2. State Key Laboratory for Tunnel Engineering，China University of Mining and Technology(Beijing)，Beijing 100083，China；
3. School of Mechanics and Civil Engineering，China University of Mining and Technology(Beijing)，Beijing 100083，China；
4. School of Emergency Management and Safety Engineering，China University of Mining and Technology(Beijing)，Beijing 100083，China；5. Beijing Anke Xingye Technology Co.，Ltd.，Beijing 100083，China)
Abstract：Addressing the issue of rock bursts and instability in deep coal roadways with high three-way stress differences，this study employs theoretical analysis，numerical simulations，and engineering case studies to reveal the mechanisms of rock bursts and instability in such areas. Based on the Mohr-Coulomb criterion，the definition of the three-way stress difference is modified to ，providing a quantitative damage criterion for coal body units. High three-way stress differences in deep coal mines are categorized into horizontal tectonic stress type and vertical stress type based on their origins. After roadway excavation in high-stress difference areas，the coal rib experiences significant crack development and increased damage extent. Additionally，there are higher movement speeds，larger displacements，and faster destruction rates. The peak value of the three-way stress difference，distributed radially around the surrounding rock，defines the interface between the failure and non-failure zones. The failure zone suppresses the increase in three-way stress difference in the non-failure zone，while the three-way stress difference distribution in the non-failure zone plays a dominant role in controlling the stability of the coal roadway. A stability parameter，Ss，is proposed to describe the stability of the surrounding rock of coal roadways or in unexcavated coal configuration areas. When the surrounding rock's Ss is less than the critical [Ss] of the non-failure zone boundary，accumulated deformation in the non-failure zone drives coal from the failure zone towards the roadway，leading to instability. When Ss decreases sharply，the non-failure zone rapidly fails，and significant deformation accumulation drives the coal body in the failure zone to experience a rock burst. This mechanism is validated through a case study of a rock burst incident in the high three-way stress area formed by a coal pillar at the Huafeng coal mine.
刘国磊1，梁文昭2，3，马秋峰1，王泽东4，曲效成5. 深部煤巷高三向应力差异区冲击失稳机制[J]. 岩石力学与工程学报, 2025, 44(4): 797-809.
LIU Guolei1，LIANG Wenzhao2，3，MA Qiufeng1，WANG Zedong4，QU Xiaocheng5. Mechanisms of rock burst instability in deep coal roadway with high three-way stress difference area. , 2025, 44(4): 797-809.
[1] 窦林名，田鑫元，曹安业，等. 我国煤矿冲击地压防治现状与难题[J]. 煤炭学报，2022，47(1)：152–171.(DOU Linming，TIAN Xinyuan，CAO Anye，et al. Present situation and problems of coal mine rock burst prevention and control in China[J]. Journal of China Coal Society，2022，47(1)：152–171.(in Chinese))
[2] 齐庆新，潘一山，李海涛，等. 煤矿深部开采煤岩动力灾害防控理论基础与关键技术[J]. 煤炭学报，2020，45(5)：1 567–1 584.(QI Qingxin，PAN Yishan，LI Haitao，et al. Theoretical basis and key technology of prevention and control of coal-rock dynamic disasters in deep coal mining[J]. Journal of China Coal Society，2020，45(5)：1 567–1 584.(in Chinese))
[3] 齐庆新，李一哲，赵善坤，等. 我国煤矿冲击地压发展70年：理论与技术体系的建立与思考[J]. 煤炭科学技术，2019，47(9)：1–40.(QI Qingxin，LI Yizhe，ZHAO Shankun，et al. Seventy years development of coal mine rockburst in China：establishment and consideration of theory and technology system[J]. Coal Science and Technology，2019，47(9)：1–40.(in Chinese))
[4] 李 铁，蔡美峰，孙丽娟，等. 基于震源机制解的矿井采动应力场反演与应用[J]. 岩石力学与工程学报，2016，35(9)：1 747–1 753. (LI Tie，CAI Meifeng，SUN Lijuan，et al. Inversion of mining-induced stress field and its application based on focal mechanism solution[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(9)：1 747–1 753.(in Chinese))
[5] 王书文，鞠文君，潘俊锋，等. 构造应力场煤巷掘进冲击地压能量分区演化机制[J]. 煤炭学报，2019，44(7)：2 000–2 010.(WANG Shuwen，JU Wenjun，PAN Junfeng，et al. Mechanism of energy partition evolution of excavation roadway rockburst in coal seam under tectonic stress field[J]. Journal of China Coal Society，2019，44(7)：2 000–2 010.(in Chinese))
[6] 蔡 武，窦林名，王桂峰，等. 煤层采掘活动引起断层活化的力学机制及其诱冲机制[J]. 采矿与安全工程学报，2019，36(6)：1 193–1 202.(CAI Wu，DOU Linming，WANG Guifeng，et al. Mechanism of fault reactivation and its induced coal burst caused by coal mining activities[J]. Journal of Mining and Safety Engineering，2019，36(6)：1 193–1 202.(in Chinese))
[7] LI Z L，DOU L M，CAI W，et al. Investigation and analysis of the rock burst mechanism induced within fault-pillars[J]. International Journal of Rock Mechanics and Mining Sciences，2014，70：192–200.
[8] 李 静，何 江，巩思园，等. 上覆遗留煤柱作用下冲击矿压预测预警案例研究[J]. 煤炭学报，2016，41(增2)：305–310.(LI Jing，HE Jiang，GONG Siyuan，et al. Case study on prediction and warning of rock burst under overlying pillar[J]. Journal of China Coal Society，2016，41(Supp.2)：305–310.(in Chinese))
[9] 史 红，王存文，孔令海，等. “S”型覆岩空间结构煤柱导致冲击失稳的力学机制探讨[J]. 岩石力学与工程学报，2012，31(增2)：3 508–3 513.(SHI Hong，WANG Cunwen，KONG Linghai，et al. Mechanism discussion on rock bursting caused by coal pillar of S-shaped overlying multi-strata spatial structure[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.2)：3 508–3 513.(in Chinese))
[10] 康红普，徐 刚，王彪谋，等. 我国煤炭开采与岩层控制技术发展40 a及展望[J]. 采矿与岩层控制工程学报，2019，1(2)：7–39. (KANG Hongpu，XU Gang，WANG Biaomou，et al. Forty years development and prospects of underground coal mining and strata control technologies in China[J]. Journal of Mining and Strata Control Engineering，2019，1(2)：7–39.(in Chinese))
[11] 姜耀东，潘一山，姜福兴，等. 我国煤炭开采中的冲击地压机制和防治[J]. 煤炭学报，2014，39(2)：205–213.(JIANG Yaodong，PAN Yishan，JIANG Fuxing，et al. State of the art review on mechanism and prevention of coal bumps in China[J]. Journal of China Coal Society，2014，39(2)：205–213.(in Chinese))
[12] 袁 亮，姜耀东，何学秋，等. 煤矿典型动力灾害风险精准判识及监控预警关键技术研究进展[J]. 煤炭学报，2018，43(2)：306–318. (YUAN Liang，JIANG Yaodong，HE Xueqiu，et al. Research progress of precise risk accurate identification and monitoring early warning on typical dynamic disasters in coal mine[J]. Journal of China Coal Society，2018，43(2)：306–318.(in Chinese))
[13] 李玉生. 冲击地压机制及其初步应用[J]. 中国矿业学院学报，1985，(3)：42–48.(LI Yusheng. The mechanism of impact ground pressure and its preliminary application[J]. Journal of China University of Mining and Technology，1985，(3)：42–48.(in Chinese))
[14] 齐庆新，高作志，王 升. 层状煤岩体结构破坏的冲击矿压理论[J]. 煤矿开采，1998，(2)：14–17.(QI Qingxin，GAO Zuozhi，WANG Sheng. The theory of rock-burst led by structure failure of bedded coalrock mass[J]. Coal Mining Technology，1998，(2)：14–17.(in Chinese))
[15] 潘俊锋，宁 宇，毛德兵，等. 煤矿开采冲击地压启动理论[J]. 岩石力学与工程学报，2012，31(3)：586–596.(PAN Junfeng，NING Yu，MAO Debing，et al. Theory of rockburst start-up during coal mining[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(3)：586–596.(in Chinese))
[16] 潘一山. 煤矿冲击地压扰动响应失稳理论及应用[J]. 煤炭学报，2018，43(8)：2 091–2 098.(PAN Yishan. Disturbance response instability theory of rockburst in coal mine[J]. Journal of China Coal Society，2018，43(8)：2 091–2 098.(in Chinese))
[17] 姜福兴，冯 宇，KOUAME K J A，等. 高地应力特厚煤层“蠕变型”冲击机制研究[J]. 岩土工程学报，2015，37(10)：1 762–1 768. (JIANG Fuxing，FENG Yu，KOUAME K J A，et al. Mechanism of creep-induced rock burst in extra-thick coal seam under high ground stress[J]. Chinese Journal of Geotechnical Engineering，2015，37(10)：1 762–1 768.(in Chinese))
[18] DOU L M，MU Z L，LI Z L，et al. Research progress of monitoring，forecasting，and prevention of rockburst in underground coal mining in China[J]. International Journal of Coal Science and Technology，2014，1(3)：278–288.
[19] 潘立友. 冲击地压前兆信息的可识别性研究及应用[J]. 岩石力学与工程学报，2004，23(8)：1 411.(PAN Liyou. Identification and application of omen information of rockburst[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(8)：1 411.(in Chinese))
[20] 康红普. 我国煤矿巷道围岩控制技术发展70年及展望[J]. 岩石力学与工程学报，2021，40(1)：1–30.(KANG Hongpu. Seventy years development and prospects of strata control technologies for coal mine roadways in China[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(1)：1–30.(in Chinese))
[21] 康红普，姜鹏飞，黄炳香，等. 煤矿千米深井巷道围岩支护–改性–卸压协同控制技术[J]. 煤炭学报，2020，45(3)：845–864.(KANG Hongpu，JIANG Pengfei，HUANG Bingxiang，et al. Roadway strata control technology by means of bolting-modification-destressing in synergy in 1 000 m deep coal mines[J]. Journal of China Coal Society，2020，45(3)：845–864.(in Chinese))
[22] 赵洪宝，程 辉，刘绍强，等. 非等压应力场巷道围岩主应力差分布规律与稳定性分析[J]. 采矿与安全工程学报，2021，38(6)：1 111–1 121.(ZHAO Hongbao，CHENG Hui，LIU Shaoqiang，et al. Distribution law of principal stress difference and stability of roadway surrounding rock in unequal stress field[J]. Journal of Mining and Safety Engineering，2021，38(6)：1 111–1 121.(in Chinese))
[23] 许 磊，张海亮，耿东坤，等. 煤柱底板主应力差演化特征及巷道布置[J]. 采矿与安全工程学报，2015，32(3)：478–484.(XU Lei，ZHANG Hailiang，GENG Dongkun，et al. Principal stress difference evolution in floor under pillar and roadway layout[J]. Journal of Mining and Safety Engineering，2015，32(3)：478–484.(in Chinese))
[24] CHEN D D，JIANG Z S，MA X，et al. Evolution law and engineering application on main stress difference for a novel stress relief technology in two ribs on deep coal roadway[J]. Journal of Central South University，2023，30(7)：2 266–2 283.
[25] 谢生荣，李世俊，黄 肖，等. 深部沿空巷道围岩主应力差演化规律与控制[J]. 煤炭学报，2015，40(10)：2 355–2 360.(XIE Shengrong，LI Shijun，HUANG Xiao，et al. Surrounding rock principal stress difference evolution law and control of gob-side entry driving in deep mine[J]. Journal of China Coal Society，2015，40(10)：2 355–2 360.(in Chinese))
[26] 牛双建，靖洪文，杨大方. 深井巷道围岩主应力差演化规律物理模拟研究[J]. 岩石力学与工程学报，2012，31(增2)：3 811–3 820. (NIU Shuangjian，JING Hongwen，YANG Dafang. Physical simulation study of principal stress difference evolution law of surrounding rock of deep mine roadways[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.2)：3 811–3 820.(in Chinese))
[27] 何富连，王晓明，许 磊，等. 大断面切眼主应力差转移规律及支护技术[J]. 岩土力学，2014，35(6)：1 703–1 710.(HE Fulian，WANG Xiaoming，XU Lei，et al. Principal stress difference transfer law and support in large-section open-off cut[J]. Rock and Soil Mechanics，2014，35(6)：1 703–1 710.(in Chinese))
[28] 沈荣喜，袁子晨，王恩元，等. 煤岩三向应力监测系统研发及在冲击矿井中的应用[J]. 采矿与安全工程学报，2023，40(1)：155–163. (SHEN Rongxi，YUAN Zichen，WANG Enyuan，et al. Research of three-dimensional stress monitoring system for coal-rock and its application in rockburst mine[J]. Journal of Mining and Safety Engineering，2023，40(1)：155–163. (in Chinese))
[29] 刘国磊，王泽东，崔 嵛，等. 深部煤巷围岩三向应力差异梯度致冲机制[J]. 煤炭学报，2023，48(5)：2 106–2 122.(LIU Guolei，WANG Zedong，CUI Yu，et al. Mechanism of rock burst in deep coal tunnel surroundings due to three-way stress difference gradient[J]. Journal of China Coal Society，2023，48(5)：2 106–2 122.(in Chinese))
[30] 潘一山，代连朋. 煤矿冲击地压发生理论公式[J]. 煤炭学报，2021，46(3)：789–799.(PAN Yishan，DAI Lianpeng. Theoretical formula of rock burst in coal mines[J]. Journal of China Coal Society，2021，46(3)：789–799.(in Chinese))
[31] 刘国磊，王泽东，张修峰，等. 基于围岩应力差异梯度控制的深部煤巷防冲机制与技术[J]. 煤炭学报，2025，待刊.(LIU Guolei，WANG Zedong，ZHANG Xiufeng，et al. Mechanism and technology of rock burst prevention in deep coal tunnel based on controlling surrounding rock stress difference gradient[J]. Journal of China Coal Society，2025，to be pressed.(in Chinese))
[32] 康红普，高富强. 煤矿采动应力演化与围岩控制[J]. 岩石力学与工程学报，2024，43(1)：1–40.(KANG Hongpu，GAO Fuqiang. Evolution of mining-induced stress and strata control in underground coal mines[J]. Chinese Journal of Rock Mechanics and Engineering，2024，43(1)：1–40.(in Chinese))
[33] 雷光伟，杨春和，王贵宾，等. 断层影响带的发育规律及其力学成因[J]. 岩石力学与工程学报，2016，35(2)：231–241.(LEI Guangwei，YANG Chunhe，WANG Guibin，et al. The development law and mechanical causes of fault influenced zone[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(2)：231–241.(in Chinese))
[34] 王宏伟，王 晴，石瑞明，等. 煤矿冲击地压与断层构造失稳的多物理场互馈机制研究进展[J]. 煤炭学报，2022，47(2)：762–790. (WANG Hongwei，WANG Qing，SHI Ruiming，et al. A review on the interaction mechanism between coal bursts and fault structure instability from the perspective of multi-physical field[J]. Journal of China Coal Society，2022，47(2)：762–790.(in Chinese))
[35] 李冬冬，胡浩然，肖 明，等. 基于PFC-FLAC离散–连续耦合的隧洞开挖与锚杆支护颗粒流模型[J]. 武汉大学学报：工学版，2024，57(3)：286–294.(LI Dongdong，HU Haoran，XIAO Ming，et al. Tunnel excavation and bolt support particle flow model based on PFC-FLAC discrete-continuous coupling analysis[J]. Engineering Journal of Wuhan University，2024，57(3)：286–294.(in Chinese))
[36] 周 健，邓益兵，贾敏才，等. 基于颗粒单元接触的二维离散–连续耦合分析方法[J]. 岩土工程学报，2010，32(10)：1 479–1 484. (ZHOU Jian，DENG Yibing，JIA Mincai，et al. Coupling method of two-dimensional discontinuum-continuum based on contact between particle and element[J]. Chinese Journal of Geotechnical Engineering，2010，32(10)：1 479–1 484.(in Chinese))
2025, Vol. 44 
