深部巷道煤与瓦斯突出及冲击演化特征试验研究

doi:10.13722/j.cnki.jrme.2021.0974

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

Download: PDF (2152 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract To further reveal the impact failure mechanism of the two-phase flow of coal and gas outburst，the briquette specimens from the Sunjiawan outburst coal seam in Fuxin were made，and simulation tests of deep coal and gas outburst in roadways under different depths(1 000，1 200，1 400，1 600，1 800 and 2 000 m) were carried out by using the self-developed true triaxial coal and gas outburst roadway simulation test system. The relative outburst intensity under the test outburst critical gas pressure was defined as unit outburst intensity. The relationships between the critical gas pressure and the unit outburst intensity with the depth were analyzed，and the variation rules among the critical gas pressure，the effective stress and impact parameters(peak impact force，time to peak，duration of outburst) were obtained. Based on the outburst shock wave front velocity formula，the velocity of the impact flow in the test roadway was inverted. The results show that：(1) When an outburst occurs，the pulverized coal is spewed out violently by high-pressure gas，and outburst coal at different depths gathers within the interval of 0–6.45 m from the outburst mouth. As the depth increases，the mass proportion of the pulverized coal concentration area increases，while with increasing the outburst distance，the mass proportion of the pulverized coal gradually decreases，indicating that the outburst energy gradually decays with the outburst distance and that the pulverized coal settlement after the outburst has sorting characteristics. (2) As the depth increases，the critical gas pressure decreases while the unit outburst strength gradually increases. The greater the depth，the greater the change amplitude，reflecting the low threshold，easy outburst and high strength characteristics of deep coal and gas outburst. (3) The evolution of the impact force in the roadway experiences a process of“rise，peak and decrease”，presenting a“crest effect”. The velocity of the impact flow is 361.61–379.13 m/s，showing obvious turbulence characteristics. The greater the depth，the less obvious the turbulence characteristics. (4) The critical gas pressure and the effective stress have significant influence on impact parameters. The peak of the impact force increases exponentially with the critical gas pressure while linearly decreases with the effective stress. The time to the peak decreases with increasing the critical gas pressure but increases with increasing the effective stress. The duration of outburst increases with increasing the critical gas pressure while decreases with increasing the effective stress.

Key words： mining engineering coal and gas outburst roadway impact force critical gas pressure effective stress

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	TANG Jupeng1
	2
	ZHANG Xin1
	2
	PAN Yishan3
	HAO Na1
	2

Cite this article:

TANG Jupeng1,2,ZHANG Xin1, et al. Experimental study on outburst and impact evolution characteristics of coal and gas in deep roadways[J]. , 2022, 41(6): 1081-1092.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2021.0974 OR https://rockmech.whrsm.ac.cn/EN/Y2022/V41/I6/1081

[1]	朱丽媛，李忠华，刘瀚琦. 深部开采煤岩瓦斯动力灾害统一发生机制及监测技术[J]. 安全与环境学报，2017，17(3)：937-942.(ZHU Liyuan，LI Zhonghua，LIU Hanqi. Consequential mechanism and the monitoring technique for the gassy coalrock dynamics disaster in the deep mining[J]. Journal of Safety and Environment，2017，17(3)：937-942.(in Chinese))
[2]	李俊平，王红星，王晓光，等. 卸压开采研究进展[J]. 岩土力学，2014，35(增2)：350-358.(LI Junping，WANG Hongxing，WANG Xiaoguang，et al. Research progress in pressure-relief mining[J]. Rock and Soil Mechanics，2014，35(Supp.2)：350-358.(in Chinese))
[3]	李俊平，叶浩然，侯先芹. 高应力下硬岩巷道掘进端面钻孔爆破卸压动态模拟[J]. 安全与环境学报，2018，18(3)：962-967.(LI Junping，YE Haoran，HOU Xianqin. Dynamic simulated model for the destress blast for the hard rock roadway tunneling under the high geostress[J]. Journal of Safety and Environment，2018，18(3)：962-967.(in Chinese))
[4]	俞启香. 矿井瓦斯防治[M]. 徐州：中国矿业大学出版社，1992：66-67.(YU Qixiang. Mine gas prevention and control[M]. Xuzhou：Journal of China University of Mining and Technology，1992：66-67.(in Chinese))
[5]	程远平. 煤矿瓦斯防治理论与工程应用[M]. 徐州：中国矿业大学出版社，2010：507-508.(CHENG Yuanping. Coal mine gas prevention theory and engineering application[M]. Xuzhou：Journal of China University of Mining and Technology，2010：507-508.(in Chinese))
[6]	HU S Y，FENG G R，REN X Y，et al. Numerical study of gas-solid two-phase flow in a coal roadway after blasting[J]. Advanced Powder Technology，2016，27(4)：1 607-1 617.
[7]	金侃. 煤与瓦斯突出过程中高压粉煤-瓦斯两相流形成机制及致灾特征研究[博士学位论文][D]. 徐州：中国矿业大学，2017.(JIN Kan. Study on formation mechanism and disaster characteristics of high pressure pulverized coal-gas two-phase flow in coal and gas outburst[Ph. D. Thesis][D]. Xuzhou：China University of Mining and Technology，2017.(in Chinese))
[8]	程五一，刘晓宇，王魁军. 煤与瓦斯突出冲击波阵面传播规律的研究[J]. 煤炭学报，2004，29(1)：57-60.(CHENG Wuyi，LIU Xiaoyu，WANG Kuijun，et al. Study on regulation about shock-wave-front propagating for coal and gas outbursts[J]. Journal of China Coal Society，2004，29(1)：57-60.(in Chinese))
[9]	杨书召，张瑞林. 煤与瓦斯突出冲击波及瓦斯气流所致伤害研究[J]. 中国安全科学学报，2012，22(11)：62-66.(YANG Shuzhao，ZHANG Ruilin. Research on injuries due to shock wave and gas flow from coal and gas outburst[J]. China Safety Science Journal，2012，22(11)：62-66.(in Chinese))
[10]	唐巨鹏，于宁，陈帅. 瓦斯压力对煤与瓦斯射流突出能量的影响[J]. 安全与环境学报，2017，17(3)：943-948.(TANG Jupeng，YU Ning，CHEN Shuai. Influence of gas pressure on the outstanding energy of coal and gas jet[J]. Journal of Safety and Environment，2017，17(3)：943-948.(in Chinese))
[11]	苗法田，胡千庭，孙东玲. 煤与瓦斯突出冲击波的形成机制[J]. 煤炭学报，2013，38(3)：367-372.(MIAO Fatian，HU Qianting，SUN Dongling. The formation mechanism of shock waves in the coal and gas outburst process[J]. Journal of China Coal Society，2013，38(3)：367-372.(in Chinese))
[12]	张建方，王凯，韦彩平. 煤与瓦斯突出冲击波的形成与传播规律
研究[J]	采矿与安全工程学报，2010，27(1)：71-75.(ZHANG Jianfang，WANG Kai，WEI Caiping. Formation propagation of shock waves during coal and gas outbursts[J]. Journal of Mining and Safety Engineering，2010，27(1)：71-75.(in Chinese))
[13]	孙东玲，曹偈，苗法田，等. 突出煤-瓦斯在巷道内的运移规律[J]. 煤炭学报，2018，43(10)：2 773-2 779.(SUN Dongling，CAO Jie，MIAO Fatian，et al. Migration law of outburst coal and gas in roadway[J]. Journal of China Coal Society，2018，43(10)：2 773-2 779.(in Chinese))
[14]	ZHOU A T，ZHANG M，WANG K，et al. Rapid gas desorption and its impact on gas-coal outbursts as two-phase flows[J]. Process Safety and Environmental Protection，2021，150：478-488.
[15]	ZHOU A T，ZHANG M，WANG K，et al. Quantitative study on gas dynamic characteristics of two-phase gas-solid flow in coal and gas outbursts[J]. Process Safety and Environmental Protection，2020，139：251-261.
[16]	ZHAO W，CHENG Y P，GUO P K，et al. An analysis of the gas-solid plug flow formation: New insights into the coal failure process during coal and gas outbursts[J]. Powder Technology，2017，305：39-47.
[17]	许江，周斌，彭守建，等. 基于热-流-固体系参数演变的煤与瓦斯突出能量演化[J]. 煤炭学报，2020，45(1)：213-222.(XU Jiang，ZHOU Bin，PENG Shoujian，et al. Evolution of outburst energy based on development of heat-flow-solids parameters[J]. Journal of China Coal Society，2020，45(1)：213-222.(in Chinese))
[18]	许江，耿加波，彭守建，等. 煤与瓦斯突出脉动式发展过程的试验研究[J]. 中国矿业大学学报，2018，47(1)：145-154.(XU Jiang，GENG Jiabo，PENG Shoujian，et al. Analysis of the pulsating development process of coal and gas outburst[J]. Journal of China University of Minging and Technology，2018，47(1)：145-154.(in Chinese))
[19]	许江，程亮，周斌，等. 突出过程中煤-瓦斯两相流运移的物理模拟研究[J]. 岩石力学与工程学报，2019，38(10)：1 945-1 953. (XU Jiang，CHENG Liang，ZHOU Bin，et al. Physical simulation of coal-gas two-phase flow migration in coal and gas outburst[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(10)：1 945-1 953.(in Chinese))
[20]	程亮，许江，周斌，等. 不同瓦斯压力对煤与瓦斯突出两相流传播规律的影响研究[J]. 岩土力学，2020，41(8)：2 619-2 626. (CHENG Liang，XU Jiang，ZHOU Bin，et al. The influence of different gas pressure on the propagation law of coal and gas outburst two-phase flow[J]. Rock and Soil Mechanics，2020，41(8)：2 619-2 626. (in Chinese))
[21]	蒋安飞，孙东玲，刘延保，等. 瓦斯压力对煤与瓦斯突出冲击波传播的影响研究[J]. 矿业安全与环保，2021，48(2)：18-22.(JIANG Anfei，SUN Dongling，LIU Yanbao，et al. Study on the influence of gas pressure on the propagation of coal and gas outburst shock wave[J]. Mining Safety and Environmental Protection，2021，48(2)：18-22.(in Chinese))
[22]	张煜. 煤与瓦斯突出两相流在巷道中运移及动力特征研究[硕士学位论文][D]. 淮南：安徽理工大学，2020.(ZHANG Yu. Research on migration and dynamic characteristics of two-phase flow of coal and gas outburst in roadway[M. S. Thesis][D]. Huainan：Anhui University of Science and Technology，2020.(in Chinese))
[23]	苗琦，孟刚，陈敏，等. 我国煤炭资源可供性分析及保障研究[J]. 能源与环境，2020，(2)：6-8.(MIAO Qi，MENG Gang，CHEN Min，et al. Research on analysis and guarantee of coal resources availability in China[J]. Energy and Environment，2020，(2)：6-8.(in Chinese))
[24]	胡社荣，彭纪超，黄灿，等. 千米以上深矿井开采研究现状与进展[J]. 中国矿业，2011，20(7)：105-110.(HU Sherong，PENG Jichao，HUANG Can，et al. Research status and progress of deep mine exploitation over 1000 m[J]. China Mining Magazine，2011，20(7)：105-110.(in Chinese))
[25]	李新平，汪斌，周桂龙. 我国大陆实测深部地应力分布规律研究[J]. 岩石力学与工程学报，2012，31(增1)：2 875-2 880.(LI Xinping，WANG Bin，ZHOU Guilong. Research on distribution rule of geostress in deep stratum in Chinese mainland[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.1)：2 875-2 880. (in Chinese))
[26]	唐巨鹏，杨森林，王亚林，等. 地应力和瓦斯压力作用下深部煤与瓦斯突出试验[J]. 岩土力学，2014，35(10)：2 769-2 775.(TANG Jupeng，YANG Senlin，WANG Yalin，et al. Experiment of coal and gas outbursts underground stress and gas pressure in deep mines[J]. Rock and Soil Mechanics，2014，35(10)：2 769-2 775.(in Chinese))
[27]	陈忠达，袁万杰，郑东启. 级配理论应用研究[J]. 重庆交通学院学报，2005，(4)：44-48.(CHEN Zhongda，YUAN Wanjie，ZHENG Dongqi. Study on the application of grading theory[J]. Journal of Chongqing Jiaotong University，2005，(4)：44-48.(in Chinese))
[28]	胡千庭. 煤与瓦斯突出的力学作用机制[M]. 北京：科学出版社，2013：47-48.(HU Qianting. Mechanical mechanism of coal and gas outburst[M]. Beijing：Science Press，2013：47-48.(in Chinese))
[29]	耿加波. 煤与瓦斯突出灾变时空演化及其煤-瓦斯两相流运移特性物理模拟试验研究[博士学位论文][D]. 重庆：重庆大学，2018.(GENG Jiabo. Physical simulation on evolution of coal and gas outbursts and coal-gas two-phase flow transport characteristics[Ph. D. Thesis][D]. Chongqing：Chongqing University，2018.(in Chinese))
[30]	郭品坤. 煤与瓦斯突出层裂发展机制研究[博士学位论文][D]. 徐州：中国矿业大学，2014.(GUO Pinkun. Research on laminar spallation mechanism of coal and outburst propagation[Ph. D. Thesis][D]. Xuzhou：China University of Mining and Technology，2014.(in Chinese))
[31]	WANG C J，YANG S Q，YANG D D，et al. Experimental analysis of the intensity and evolution of coal and gas outbursts[J]. Fuel，2018，226：252-262.
[32]	唐巨鹏，潘一山，杨森林. 三维应力下煤与瓦斯突出模拟试验研究[J]. 岩石力学与工程学报，2013，32(5)：960-965.(TANG Jupeng，PAN Yishan，YANG Senlin. Experimental study of coal and gas outburst under tridimensional stresses[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(5)：960-965.(in Chinese))
[33]	孙胜杰. 深部石门揭煤诱发煤与瓦斯突出模拟试验研究[硕士学位论文][D]. 阜新：辽宁工程技术大学，2019.(SUN Shengjie. Study on simulation test of coal and gas outburst induced by rock cross-cut coal uncovering[M. S. Thesis][D]. Fuxin：Liaoning Technical University，2019.(in Chinese))
[34]	王省身，谢之康. 矿井沼气爆炸安全距离的探讨[J]. 中国矿业大学学报，1989，18(4)：1-8.(WANG Xingshen，XIE Zhikang. Discussion on safety distance of mine biogas explosion[J]. Journal of China University of Mining and Technology，1989，18(4)：1-8.(in Chinese))
[35]	周爱桃. 瓦斯突出冲击气流传播及诱导矿井风流灾变规律研究[博士学位论文][D]. 北京：中国矿业大学，2012.(ZHOU Aitao. Research on propagation characteristics of shock wave and gas flow from gas outburst and induced catastrophic law of mine airflow[Ph. D. Thesis][D]. Beijing：China University of Mining and Technology，2012.(in Chinese))
[36]	孙东玲，曹偈，熊云威，等. 突出过程中煤-瓦斯两相流运移规律的实验研究[J]. 矿业安全与环保，2017，44(2)：26-30.(SUN Dongling，CAO Jie，XIONG Yunwei，et al. Experimental study on migration rule of coal-gas flow in process of outburst[J]. Mining Safety and Environmental Protection，2017，44(2)：26-30.(in Chinese))
[37]	易俊，姜永东，鲜学福. 应力场、温度场瓦斯渗流特性实验研究[J]. 中国矿业，2007，16(5)：113-116.(YI Jun，JIANG Yongdong，XIAN Xuefu. Stress field and temperature field of the gas seepage in stress field and temperature field[J]. China Mining Magazine，2007，16(5)：113-116.(in Chinese))