Theoretical framework for stress relief-support reinforcement cooperative control of rock bursts in deep coal mining

Abstract

With the increasing depth of coal mining each year, rock burst has emerged as one of the most severe dynamic disasters in deep mining. The research status of rock burst prevention and control theory is summarized. Focused on deep coal mining, the major issues encountered in researching the prevention theory of rock bursts are summarized. Subsequently, the scientific connotation theory of stress relief-support reinforcement cooperative prevention and control of rock bursts in deep coal mines is proposed. Then, the mechanisms underlying the major research directions of the theory of stress relief-support reinforcement coordinated prevention and control and present a preliminarily theoretical framework for stress relief-support reinforcement coordinated prevention and control are outlined. To tackle the key scientific problems in the coordinated prevention and control of rock bursts on relief and support in deep mine, the in-depth research based on the synergetic theory is conducted. This involved exploring the principles of near-field coal mass stress relief, near-field roof and floor stress relief, and anchor support. Additionally, the stress-energy evolution processes of the roadway near-field surrounding rock structure under various stress relief and anchor support modes be analyzed. Subsequently, a mechanical model for the optimized matching of stress relief surrounding rock and anchor support is established, with the control of the rock burst energy source at its core. Finally, the principle of collaborative prevention and control of deep mining rock burst stress relief and support from the perspectives of structural synergy, strength synergy, and stiffness synergy is elucidated. This insight is expected to provide theoretical support for the research and development of designs and techniques for deep mining rock burst prevention and control.

Keywords

Deep mining / Rock burst / Stress relief / Support / Collaborative prevention and control

References

[[1]] Linming Dou, Xinyuan Tian, Anye Cao, Siyuan Gong, H.E. Hu, H.E. Jiang, C.A.I. Wu, Xuwei Li, Present situation and problems of coal mine rock burst prevention and control in China, J. China Coal Soc. 47 (1) (2022) 152-171.

[[2]] Yishan Pan, Disturbance response instability theory of rockburst in coal mine, J. China Coal Soc. 43 (8) (2018) 2091-2098.

[[3]] Yunliang Tan, Weiyao Guo, Tongbin Zhao, Dongxiao Zhang, Xuebin Gu, Yan Tan, Development and application of a novel deep roadway test system with dynamic-static loading, Chin. J. Rock Mech. Eng. 41 (8) (2022) 1513-1524.

[[4]] Junfeng Pan, Yu Ning, Taotao Du, Hang Lan, Yin Zhang, Jun Liu, Yongxue Xia, Xiangzhi Wei, The theory and system for preventing rock burst in large-scale areas, J. China Coal Soc. 37 (11) (2012) 1803-1809.

[[5]] Qingxin Qi, Yizhe Li, Shankun Zhao, Ningbo Zhang, Weijue Zheng, Haitao Li, Hongyan Li, Seventy years development of coal mine rockburst in China: establishment and consideration of theory and technology system, Coal Sci. Technol. 47 (9) (2019) 1-40.

[[6]] Tongbin Zhao, Weiyao Guo, Fei Han, Shitan Gu, Analysis on energy accumulation and release of roof under influence of mining speed, Coal Sci. Technol. 46 (10)(2018) 37-44.

[[7]] Yangsheng Zhao, Zijun Feng, A brief introduction to disaster rock mass mechanics, Geohazard Mechanics 1 (1) (2023) 53-57.

[[8]] Qingxin Qi, Yishan Pan, Longyong Shu, Hongyan Li, Deyi Jiang, Shankun Zhao, Yinhui Zou, Junfeng Pan, Kunjun Wang, Haitao Li, Theory and technical framework of prevention and control with different sources in multi-scales for coal and rock dynamic disasters in deep mining of coal mines, J. China Coal Soc. 43 (7) (2018) 1801-1810.

[[9]] Weiyao Guo, Yunliang Tan, Zhulong Yang, Tongbin Zhao, Shanchao Hu, Effect of saturation time on the coal burst liability indexes and its application for rock burst mitigation, Geotech. Geol. Eng. 36 (1) (2018) 589-597.

[[10]] Chao Wang, Yv Liu, Dazhao Song, Jianhui Xu, Qiwei Wang, Shaoyuan Zhang, Evaluation of bedding effect on the bursting liability of coal and coal-rock combination under different bedding dip angles, Advances in Geo-Energy Research 11 (1) (2024) 29-40.

[[11]] Zhi Tang, Yishan Pan, Xiaojing Zhu, Naixin Cui, Design and study of self-moving energy absorption and anti-impact roadway advanced support, J. China Coal Soc. 41 (4) (2016) 1032-1037.

[[12]] Manchao He, Zhibiao Guo, Mechanical property and engineering application of anchor bolt with constant resistance and large deformation, Chin. J. Rock Mech. Eng. 33 (7) (2014) 1297-1308.

[[13]] Jian Lin, Yongzheng Wu, Ji Ding, Jinghe Yang, Jie He, Optimization of bolt rod material used in rock-burst roadway bolting, J. China Coal Soc. 41 (3) (2016) 552-556.

[[14]] Hongyan Li, M.O. Yunlong, Zhongxue Sun, L.I. Lei, Research status and prospect of coal bumps prevention and control technology, Coal Sci. Technol. 47 (1) (2019) 62-68.

[[15]] Yaodong Jiang, Yishan Pan, Fuxing Jiang, Linming Dou, J.U. Yang, State of the art review on mechanism and prevention of coal bumps in China, J. China Coal Soc. 39(2)(2014) 205-213.

[[16]] Wenjun Ju, Liuwei Sun, Shaohong Liu, Shuwen Wang, Taotao Du, Idea and implementation of “stress relief-support reinforcement” cooperative control in rockburst roadway, Coal Sci. Technol. 49 (4) (2021) 90-94.

[[17]] Tongbin Zhao, Weiyao Guo, Yunliang Tan, Yanchun Yin, Laisheng Cai, Junfeng Pan, Case studies of rock bursts under complicated geological conditions during multi-seam mining at a depth of 800m, Rock Mech. Rock Eng. 51 (5) (2018) 1539-1564.

[[18]] Zhenlei Li, linming Dou, Guifeng Wang, C.A.I. Wu, H.E. Jiang, Yanlu Ding, Risk evaluation of rock burst through theory of static and dynamic stresses superposition, J. Cent. S. Univ. 22 (2) (2015) 676-683.

[[19]] Hongjun Liu, Study on the Occurrence Mechanism and Preventive Technology of Double-Sided Island of Mined Coal Rock Burst occurrence[D], China University of Mining and Technology, Beijing, 2016.

[[20]] Weiyao Guo, Yue Qiu, Tongbin Zhao, Yunliang Tan, Sheng Lan, Wenguo Chen, Influence of the variable stoping speed on the occurrence mechanism of rock burst,[J]. Geomatics, Natural Hazards and Risk 10 (1) (2019) 2094-2105.

[[21]] Tongbin Zhao, Weiyao Guo, Yunliang Tan, Caiping Lu, Case histories of rock bursts under complicated geological conditions, Bull. Eng. Geol. Environ. 77 (4) (2018) 1529-1545.

[[22]] Linming Dou, Zhenyu Sun, Xuwei Li, Quan Liu, Siyuan Gong, Chao Wang, Detection and targeted control of regional stress field for coal burst prevention, Geohazard Mechanics 1 (1) (2023) 69-76.

[[23]] Meng Wang, Xiangyu Wang, Tongqiang Xiao, Borehole destressing mechanism and determination method of its key parameters in deep road-way, J. China Coal Soc. 42(5) (2017) 1138-1145.

[[24]] Shankun Zhao, Liyun Li, Baoyang Wu, Zhenhua Ouyang, Theory and application of deep hole floor-break blasting in floor rock burst coal mine, Journal of Mining & Safety Engineering 33 (4) (2016) 636-642.

[[25]] Zongxiang Li, Yishan Pan, Zhihui Zhang, The layout of drill hole and the determination of parameter in advanced water injection to prevent rockburst from occurring, J. China Coal Soc. 29 (6) (2004) 684-688.

[[26]] Hongpu Kang, Yanjun Feng, Monitoring of stress change in coal seam caused by directional hydraulic fracturing in working face with strong roof and its evolution, J. China Coal Soc. 37 (12) (2012) 1953-1959.

[[27]] Yishan Pan, Yonghui Xiao, L.I. Guozhen, Roadway hydraulic support for rockburst prevention in coal mine and its application, J. China Coal Soc. 45 (1) (2020) 90-99.

[[28]] Tongbin Zhao, Minglu Xing, Weiyao Guo, Cunwen Wang, Bo Wang, Anchoring effect and energy-absorbing support mechanism of large deformation bolt, J. Cent. S. Univ. 28 (2) (2021) 572-581.

[[29]] Yishan Pan, Yimin Song, Jun Liu, Pattern, change and new situation of coal mine rockburst prevention and control in China, Chin. J. Rock Mech. Eng. 42 (9) (2023) 2081-2095.

[[30]] Yishan Pan, Aiwen Wang, Disturbance response instability theory of rock bursts in coal mines and its application, Geohazard Mechanics 1 (1) (2023) 1-17.

[[31]] Hongpu Kang, Jinhua Wang, Jian Lin, Study and applications of roadway support techniques for coal mines, J. China Coal Soc. 35 (11) (2010) 1809-1814.

[[32]] Yunliang Tan, Tongbin Zhao, Yaxun Xiao, Quantitative prop support estimation and remote monitor early warning for hard roof weighting at the Muchengjian Mine in China, Can. Geotech. J. 47 (9) (2010) 947-954.

[[33]] Yanchun Yin, Hongjie Zhou, Yubao Zhang, Chao Wang, Yanhui Deng, Biao Chen, Anchorage weakening effect of coal roadway sidewall with different destressing borehole diameters, Energy Sci. Eng. 11 (3) (2023) 1325-1335.

[[34]] Tongbin Zhao, Yunliang Tan, Shanshan Liu, Yaxun Xiao, Analysis of rheological properties and control mechanism of anchored rock, Rock Soil Mech. 33 (6) (2012) 1730-1734.

[[35]] Yunliang Tan, Weiyao Guo, Hengqi Xin, Tongbin Zhao, Fenghai Yu, Xuesheng Liu, Key technology of rock burst monitoring and control in deep coal mining, J. China Coal Soc. 44 (1) (2019) 160-172.

[[36]] Shaohong Liu, Junfeng Pan, Jinliang Liu, Liuwei Sun, Yongxue Xia, Taotao Du, Zihan Qin, Optimization of blasting parameters for rock burst coal seam based on pressure release and support coupling, Coal Sci. Technol. 46 (11) (2018) 21-29.