区域多工作面协调开采防治冲击地压实践研究

李一哲; 秦　凯; 王　寅; 李云鹏; 管新邦; 赵善坤; 郝其林; 许士奎

区域多工作面协调开采防治冲击地压实践研究

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出版历程
- 发布日期: 2023-02-19

Practice research on prevention and control of rock burst with harmonic mining among regional multiple working faces

摘要

摘要: 矿井多工作面之间的开采扰动会诱发煤矿冲击地压灾害，区域工作面协调开采是此类冲击地压防治的关键手段之一。为了工程验证区域多工作面协调开采防治冲击地压的合理性和有效性，以冲击地压多发的义马矿区为例，基于模拟得到的协调开采原则及参数取值，制定了跃进-常村井间区域协调开采方案，通过对比不同协调开采程度区域的应力转移特征和冲击事件特征，评估了工作面协调开采效果。结果表明：跃进-常村井间区域中，跃进23092工作面和常村21162工作面煤层厚度和巨厚砾岩厚度较小，23092-21162工作面组和21170-21162工作面组开采时工作面之间煤柱宽度较大、两工作面水平距离和垂直错距较远，井间23092工作面和21162工作面为最优的接续工作面；跃进-常村井间区域协调开采程度高于耿村-千秋井间区域，协调开采使工作面之间由冲击和开采引发应力转移的频次和强度均明显降低，应力转移范围明显减小，协调开采效果明显。
- 冲击地压 /
- 多工作面 /
- 协调开采 /
- 煤柱宽度 /
- 应力转移
Abstract: The mining disturbance between multiple working faces will induce rock burst disaster, and regional harmonic mining is one of the key means to prevent this kind of rock burst. In order to verify the rationality and effectiveness of regional harmonic mining to prevent rock burst, taking Yima Mining Area where rock burst occurs frequently as an example, based on the harmonic mining principles and parameter values obtained from simulation, the harmonic mining scheme in the area between Yuejin and Changcun coal mines is formulated, and the effect of harmonic mining is evaluated by comparing the stress transfer characteristics and rock burst characteristics in the area with different harmonic degrees. The results show that the thickness of coal seam and huge thick conglomerate of Yuejin 23092 face and Changcun 21162 face are smaller in the area between Yuejin and Changcun coal mines. The width of coal pillar between 23092-21162 and 21170-21162 working faces are larger, and the horizontal distance and vertical offset between the two faces are further, so the 23092 and 21162 working faces between the two coal mines are the optimal continuous working faces. The degree of harmonic mining in the area between Yuejin and Changcun coal mines is higher than that of Gengcun and Qianqiu coal mines. The frequency and intensity of stress transfer caused by rock burst and mining among working faces are all significantly reduced with harmonic mining, and the range of stress transfer significantly is reduced, so the effect of harmonic mining is obvious.
- rock burst /
- multiple working faces /
- harmonic mining /
- coal pillar width /
- stress transfer

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参考文献(19)

[1]	赵善坤．深孔顶板预裂爆破力构协同防冲机理及工程实践[J]．煤炭学报，2021，46（11）：3419－3432. ZHAO Shankun. Mechanism and application of force-structure cooperative prevention and control on rockburst with deep hole roof pre-blasting[J]. Journal of China Coal Society, 2021, 46（11）: 3419-3432.
[2]	赵善坤，齐庆新，李云鹏，等．煤矿深部开采冲击地压应力控制技术理论与实践[J]．煤炭学报，2020，45（S2）：626－636. ZHAO Shankun, QI Qingxin, LI Yunpeng, et al. Theory and practice of rockburst stress control technology in deep coalmine[J]. Journal of China Coal Society, 2020, 45（S2）: 626-636.
[3]	赵善坤，苏振国，侯煜坤，等．采动巷道矿压显现特征及力构协同防控技术研究[J]．煤炭科学技术，2021， 49（6）：61－71. ZHAO Shankun, SU Zhenguo, HOU Yukun, et al. Study on mine pressure characteristics and force-structure cooperative prevention and control on mining roadway with deep thick hard roof[J]. Coal Science and Technology, 2021, 49（6）: 61-71.
[4]	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.
[5]	陈国祥，郭兵兵，窦林名．褶皱区工作面开采布置与冲击地压的关系探讨[J]．煤炭科学技术，2010，38（10）：27－30. CHEN Guoxiang, GUO Bingbing, DOU Linming, et al. Discussion on relationship between mining layout of coal mining face and rockburst in geological fold area[J]. Coal Science and Technology, 2010, 38（10）: 27-30.
[6]	张忠温，赵雷，韩刚．冲击地压矿井合理回采速度的确定方法研究[J]．煤炭科学技术，2021，49（12）：67－74. ZHANG Zhongwen, ZHAO Lei, HAN Gang. Method of determining reasonable mining speed in rockburst mine[J]. Coal Science and Technology, 2021, 49（12）: 67 -74.
[7]	曹安业，刘耀琪，蒋思齐，等．临地堑开采冲击地压发生机制及主控因素研究[J]．采矿与安全工程学报，2022，39（1）：36－44. CAO Anye, LIU Yaoqi, JIANG Siqi. Occurrence mechanism and main control factors of coal burst near graben mining[J]. Journal of Mining & Safety Engineering, 2022, 39（1）: 36-44.
[8]	姜福兴，刘烨，刘军，等．冲击地压煤层局部保护层开采的减压机理研究[J]．岩土工程学报，2019，41（2）：368-375. JIANG Fuxing, LIU Ye, LIU Jun, et al. Pressure-releasing mechanism of local protective layer in coal seam with rock burst[J]. Chinese Journal of Geotechnical Engineering, 2019, 41（2）: 368-375.
[9]	赵善坤，刘军，姜红兵，等．巨厚砾岩下薄保护层开采应力控制防冲机理[J]．煤矿安全，2013，44（9）：47 －49. ZHAO Shankun, LIU Jun, JIANG Hongbing, et al. Stress control and rock burst prevention mechanism on thin protective seam mining under thick gravel[J]. Safety in Coal Mines, 2013, 44（9）: 47-49.
[10]	谭云亮，郭伟耀，辛恒奇，等．煤矿深部开采冲击地压监测解危关键技术研究[J]．煤炭学报，2019，44（1）：160－172. TAN Yunliang, GUO Weiyao, XIN Hengqi, et al. Key technology of rock burst monitoring and control in deep coal mining[J]. Journal of China Coal Society, 2019, 44（1）: 160-172.
[11]	甘林堂．煤矿开采动力灾害事故分析及防治对策研究[J]．煤炭科学技术，2020，48（12）：74－80. GAN Lintang. Analysis of coal mining dynamic disasters and study on prevention countermeasures[J]. Coal Science and Technology, 2020, 48（12）: 74-80.
[12]	荣海，张宏伟，朱志洁，等．近直立特厚冲击煤层保护层优选方案研究[J]．安全与环境学报，2019，19（4）：1182－1191. RONG Hai, ZHANG Hongwei, ZHU Zhijie, et al. Optimization scheme in mining in hope to protect the ultra-thick suberect coal seams off the potential rockburst risks[J]. Journal of Safety and Environment, 2019, 19（4）: 1182-1191.
[13]	王志强，乔建永，武超，等．基于负煤柱巷道布置的煤矿冲击地压防治技术研究[J]．煤炭科学技术，2019， 47（1）：69－78. WANG Zhiqiang, QIAO Jianyong, WU Chao, et al. Study on mine rock burst prevention and control technology based on gateway layout with negative coal pillars[J]. Coal Science and Technology, 2019, 47（1）: 69-78.
[14]	舒凑先，魏全德，刘涛，等．强冲击厚煤层上保护层尖灭区域冲击地压防治技术[J]．煤矿安全，2017，48（6）：87－89. SHU Couxian, WEI Quande, LIU Tao, et al. Rock burst prevention technology for pinching out area of upper protective coal seam in thick coal seams with strong rock burst tendency[J]. Safety in Coal Mines, 2017, 48（6）: 87-89.
[15]	翟明华，姜福兴，朱斯陶，等．巨厚坚硬岩层下基于防冲的开采设计研究与应用[J]．煤炭学报，2019，44（6）：1707－1715. ZHAI Minghua, JIANG Fuxing, ZHU Sitao, et al. Research and application of mining design based on prevention of rock burst under giant thickness hard strata[J]. Journal of China Coal Society, 2019, 44（6）: 1707-1715.
[16]	李一哲，赵善坤，齐庆新，等．井间高位岩层联动诱冲机制及防冲方法初探[J]．煤炭学报，2020，45（5）：1681－1690. LI Yizhe, ZHAO Shankun, QI Qingxin, et al. Preliminary study on coal bump mechanism induced by co-movement of higher strata and coal bump control method between two mines[J]. Journal of China Coal Society, 2020, 45（5）: 1681-1690.
[17]	齐庆新，李一哲，赵善坤，等．矿井群冲击地压发生机理与控制技术探讨[J]．煤炭学报，2019，44（1）：148－157. QI Qingxin, LI Yizhe, ZHAO Shankun, et al. Discussion on the mechanism and control of coal bump among mine group[J]. Journal of China Coal Society, 2019, 44（1）: 148-157.
[18]	齐庆新，李一哲，李海涛，等．冲击地压应力流思想及其控制理论初探[J]．采矿与安全工程学报，2021，38（5）：866－875. QI Qingxin, LI Yizhe, LI Haitao, et al. Preliminary theoretical study on stress flow thought for coal bump and its control[J]. Journal of Mining & Safety Engineering, 2021, 38（5）: 866-875.
[19]	张宁博，赵善坤，赵阳，等．逆冲断层卸载失稳机理研究[J]．煤炭学报，2020，45（5）：1671－1680. ZHANG Ningbo, ZHAO Shankun, ZHAO Yang, et al. Mechanism of thrust fault rupture causing by unloading effect[J]. Journal of China Coal Society, 2020, 45（5）: 1671-1680.