石门揭煤中煤体塑性区跃迁特征与诱突机制

doi:10.13722/j.cnki.jrme.2018.0913

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (2027 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to research the outburst mechanisms of rock cross-cut coal uncovering，the outburst rock mass，stress environment and physical phenomena in rock cross-cut coal uncovering were analyzed，and a analytical model for the shape of the coal plastic zone and its induced outburst mechanism of rock cross-cut coal uncovering was established according to the butterfly-shaped failure theory of coal rock. The study results show that there is a butterfly-shaped promotion in the size and the shape of plastic zones s of rock cross-cut coal uncovering，and that the size of butterfly-shaped plastic zone is highly sensitive to the changes of the principal stress ratio and the strength of the coal rock mass. When the ratio or the strength reaches a critical condition，a slight increment would result in a massive expansion of the plastic zone. The outburst mechanisms of coal and gas induced by the butterfly-shaped mutation of plastic zones in the process of cross-cut coal uncovering were revealed. A butterfly leaf plastic zone forms within a very short time due to the changes of the principal stress ratio and the strength of the coal rock mass，which triggers a sudden release of both the elastic energy and the gas energy in coal rock and then，a coal and gas outburst accident. A computer replay of the 6.20 extraordinarily prominent case of Hongling Coal Mine was carried out，and the calculated shape and scope of the butterfly-shaped promotion in the coal body are in good agreement with the prominent cavity shape and the outburst coal volume in the disaster case. The research provides a new idea for investigating the occurrence mechanism of rock cross-cut coal uncovering.

Key words： mining engineering rock cross-cut coal uncovering coal and gas outburst butterfly-shaped damage promotion characteristics

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHAO Zhiqiang
	JIN Junxiao
	SHEN Jinchao

Cite this article:

ZHAO Zhiqiang,JIN Junxiao,SHEN Jinchao. Promotion characteristics and induced outburst mechanisms of coal plastic zones in rock cross-cut coal uncovering[J]. , 2019, 38(2): 343-352.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2018.0913 OR https://rockmech.whrsm.ac.cn/EN/Y2019/V38/I2/343

[1] 卢义玉，葛兆龙，李晓红，等. 脉冲射流割缝技术在石门揭煤中的应用研究[J]. 中国矿业大学学报，2010，39(1)：55–58.(LU Yiyu，GE Zhaolong，LI Xiaohong，et al. Investigation of a self-excited pulsed water jet for rock cross-cutting to uncover coal[J]. Journal of China University of Mining and Technology，2010，39(1)：55–58.(in Chinese))
[2] 刘健，刘泽功，高魁，等. 构造带石门揭煤诱导突出的力学特性模拟及声发射响应[J]. 煤炭学报，2014，39(10)：2 022–2 028. (LIU Jian，LIU Zegong，GAO Kui，et al. Simulation experiment of mechanical characteristics and acoustic emission response during outburst induced by rock cross-cut coal uncovering in tectonic belt[J]. Journal of China Coal Society，2014，39(10)：2 022–2 028.(in Chinese))
[3] 李贺，林柏泉，黄展博，等. 不同原岩应力方向下石门揭煤时应力与位移演化特征[J]. 煤炭科学技术，2017，45(10)：88–95.(LI He，LIN Baiquan，HUANG Zhanbo，et al. Stress and displacement evolution features of opening seam in mine cross cut based on different in-situ rock stress and orientations[J]. Coal Science and Technology，2017，45(10)：88–95.(in Chinese))
[4] 高魁，刘泽功，刘健. 地应力在石门揭构造软煤诱发煤与瓦斯突出中的作用[J]. 岩石力学与工程学报，2015，34(2)：305–312.(GAO Kui，LIU Zegong，LIU Jian. Effect of geostress on coal and gas outburst in the uncovering tectonic soft coal by cross-cut[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(2)：305–312.(in Chinese))
[5] 何俊，陈新生. 地质构造对煤与瓦斯突出控制作用的研究现状与发展趋势[J]. 河南理工大学学报：自然科学版，2009，28(1)：1–7.(HE Jun，CHEN Xinsheng. Research state and its development trends for control function of geological structure to coal and gas outburst[J]. Journal of Henan Polytechnic University：Natural Science，2009，28(1)：1–7.(in Chinese))
[6] BEAMISH B B，CROSDALE P J. Instantaneous outbursts in underground coal mines：an overview and association with coal type. International Journal of Coal Geology，1998，35(1)：27–55.
[7] 蔡成功. 煤与瓦斯突出三维模拟实验研究[J]. 煤炭学报，2004，29(1)：66–69.(CAI Chenggong. Experimental study on 3D simulation of coal and gas outbursts[J]. Journal of China Coal Society，2004，29(1)：66–69.(in Chinese))
[8] 颜爱华，徐涛. 煤与瓦斯突出的物理模拟和数值模拟研究[J]. 中国安全科学学报，2008，18(9)：37–42.(YAN Aihua，XU Tao. Laboratory experiments and numerical simulation on coal and gas outbursts[J]. China Safety Science Journal，2008，18(9)：37–42.(in Chinese))
[9] 潘一山. 煤与瓦斯突出、冲击地压复合动力灾害一体化研究[J]. 煤炭学报，2016，41(1)：105–112.(PAN Yishan. Integrated study on compound dynamic disaster of coal-gas outburst and rock burst[J]. Journal of China Coal Society，2016，41(1)：105–112.(in Chinese))
[10] 马念杰，赵希栋，赵志强，等. 掘进巷道蝶型煤与瓦斯突出机制猜想[J]. 矿业科学学报，2017，2(2)：137–149.(MA Nianjie，ZHAO Xidong，ZHAO Zhiqiang，et al. Conjecture about mechanism of butterfly-shape coal and gas outburst in excavation roadway[J]. Journal of Mining Science and Technology，2017，2(2)：137–149.(in Chinese))
[11] 赵志强，马念杰，郭晓菲，等. 煤层巷道蝶型冲击地压发生机制猜想[J]. 煤炭学报，2016，41(11)：2 689–2 697.(ZHAO Zhiqiang，MA Nianjie，GUO Xiaofei，et al. Mechanism conjecture of butterfly rock burst in coal seam roadway[J]. Journal of China Coal Society，2016，41(11)：2 689–2 697.(in Chinese))
[12] 马念杰，郭晓菲，赵志强，等. 均质圆形巷道蝶型冲击地压发生机制及其判定准则[J]. 煤炭学报，2016，41(11)：2 679–2 688.(MA Nianjie，GUO Xiaofei，ZHAO Zhiqiang，et al. Occurrence mechanisms and judging criterion on circular tunnel butterfly rock burst in homogeneous medium[J]. Journal of China Coal Society，2016，41(11)：2 679–2 688.(in Chinese))
[13] 赵志强，马念杰，郭晓菲，等. 大变形回采巷道蝶叶型冒顶机理与控制[J]. 煤炭学报，2016，41(12)：2 932–2 939.(ZHAO Zhiqiang，MA Nianjie，GUO Xiaofei，et al． Falling principle and support design of butterfly-failure roof in large deformation mining roadways[J]. Journal of China Coal Society，2016，41(12)：2 932–2 939.(in Chinese))
[14] 郭晓菲，马念杰，赵希栋，等. 圆形巷道围岩塑性区的一般形态及其判定准则[J]. 煤炭学报，2016，41(8)：1 871–1 877.(GUO Xiaofei，MA Nianjie，ZHAO Xidong，et al. General shapes and criterion for surrounding rock mass plastic zone of round roadway[J]. Journal of China Coal Society，2016，41(8)：1 871–1 877.(in Chinese))
[15] 马念杰，李季，赵志强. 圆形巷道围岩偏应力场及塑性区分布规律研究[J]. 中国矿业大学学报，2015，44(2)：206–213.(MA Nianjie，LI Ji，ZHAO Zhiqiang. Distribution of the deviatoric stress field and plastic zone in circular road-way surrounding rock[J]. Journal of China University of Mining and Technology，2015，44(2)：206–213.(in Chinese))
[16] 赵志强. 大变形回采巷道围岩变形破坏机制与控制方法研究[博士学位论文][D]. 北京：中国矿业大学(北京)，2014.(ZHAO Zhiqiang. Mechanism of surrounding rock deformation and failure and control method research in large deformation mining roadway[Ph. D. Thesis][D]. Beijing：China University of Mining Science and Technology(Beijing)，2014.(in Chinese))
[17] 赵志强，马念杰，刘洪涛，等. 巷道蝶形破坏理论及其应用前景[J].中国矿业大学学报，2018，47(5)：969–978.(ZHAO Zhiqiang，MA Nianjie，LIU Hongtao，et al. A butterfiy failure theory of rock mass around roadway and its application prospect[J]. Journal of China University of Mining and Technology，2018，47(5)：969–978.(in Chinese))
[18] 杨德方，张子敏，张玉贵，等. 复合构造控制煤与瓦斯突出及其地质条件[J]. 煤矿安全，2009，40(8)：81–83.(YANG Defang，ZHANG Zimin，ZHANG Yugui，et al. Composite structure to control coal and gas outburst and its geological conditions[J]. Safety in Coal Mines，2009，40(8)：81–83.(in Chinese))
[19] 罗康成. 地应力场对煤与瓦斯突出的控制作用[J]. 煤炭工程，2009，(8)：95–97.(LUO Kangcheng. Control of coal and gas outburst by ground stress field[J]. Coal Engineering，2009，(8)：95–97.(in Chinese))
[20] 唐巨鹏，丁佳会，于宁，等. 有效应力对石门揭煤突出影响分析和试验研究[J]. 岩石力学与工程学报，2018，37(2)：282–290.(TANG Jupeng，DING Jiahui，YU Ning，et al. Analysis and experimental study on the effect of effective stress on coal and gas outburst in crosscutting[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(2)：282–290.(in Chinese))
[21] 张春华，刘泽功，李尧斌，等. 深部矿井煤与瓦斯突出性数值模拟研究[J]. 煤炭科学技术，2009，37(8)：49–52.(ZHANG Chunhua，LIU Zegong，LI Yaobin，et al. Research on numerical simulation of coal and gas outburst features in deep mine[J]. Coal Science and Technology，2009，37(8)：49–52.(in Chinese))
[22] 黄德生. 地质构造控制煤与瓦斯突出的探讨[J]. 地质科学，1992，(增1)：201–207.(HUANG Desheng. Study of geological structure control on coal and gas outburst[J]. Chinese Journal of Geology，1992，(Supp.1)：201–207.(in Chinese))
[23] 谢雄刚，冯涛，王永，等. 煤与瓦斯突出过程中能量动态平衡[J]. 煤炭学报，2010，35(7)：1 120–1 124.(XIE Xionggang，FENG Tao，WANG Yong，et al. Study on the energy dynamic balance in coal and gas outburst[J]. Journal of China Coal Society，2010，35(7)：1 120–1 124.(in Chinese))
[24] 孙鑫，徐杨，林柏泉，等. 煤与瓦斯突出影响因素评价分析的模糊层次分析方法[J]. 中国安全科学学报，2009，19(10)：145–149.(SUN Xin，XU Yang，LIN Baiquan，et al. Evaluation and analysis of influential factors of coal and gas outburst based on fuzzy analytic hierarchy process[J]. China Safety Science Journal，2009，19(10)：145–149.(in Chinese))
[25] 郑权. 煤与瓦斯突出孔洞形成机制及突出能量源的实验与理论研究[硕士学位论文][D]. 重庆：重庆大学，2013.(ZHENG Quan. Experimental and theoretical study on the formation mechanism of coal and gas outburst hole and the prominent energy source[M. S. Thesis][D]. Chongqing：Chongqing University，2013.(in Chinese))
[26] 于学馥，郑颖人，刘怀恒，等. 地下工程围岩稳定分析[M]. 北京：煤炭工业出版社，1983：122–156.(YU Xuefu，ZHENG Yingren，LIU Huaiheng，et al. Stability analysis of surrounding rock in underground engineering[M]. Beijing：China Coal Industry Publishing House，1983：122–156.(in Chinese))
[27] 孙东生，赵卫华，王红才，等. 红菱煤矿石门揭煤突出过程模拟研究[J]. 中国矿业，2009，18(5)：91–94.(SUN Dongsheng，ZHAO Weihua，WANG Hongcai，et al. Numerical approach on outburst in cross-cutting in coal seam containing gas at Hongling coalmine[J]. China Mining Magazine，2009，18(5)：91–94.(in Chinese))
[28] 赵英俊. 一次煤与瓦斯延期性突出事故分析与对策[J]. 煤矿安全，1998，29(6)：41–42.(ZHAO Yingjun. Analysis and countermeasures of a sudden accident of coal and gas delay[J]. Safety in Coal Mines，1998，29(6)：41–42.(in Chinese))