Experimental Study on Multi-Factor Influence Law and Energy Criterion of Coal and Gas Outburst

doi:10.12068/j.issn.1005-3026.2022.04.017

Abstract

Abstract: In order to analyze the coupling influence law of multi-factors of coal and gas outburst， the outburst simulation test for rapid exposure of gas-containing coal under multiple conditions was carried out. Combining the simulation test results with the outburst energy model to calculate the quantitative relationship between outburst potential and outburst energy consumption， the results shows that the outburst critical gas pressure is positively correlated with coal strength and negatively correlated with the axial stress， which verifies the necessity of the energy criterion for outburst excitation. Based on coal elastic energy， gas expansion energy， coal strength and density and other parameters to establish two dimensionless parameters， and then fit the energy criterion formula for severe outburst. The results show that: the greater the gas pressure and axial stress， the smaller the coal strength and the higher the outburst risk. The order of importance of the influence of various factors on the risk of coal and gas outburst is: gas pressure> coal strength> axial stress.

Key words: outburst caused by rapid exposure; simulation experiment; multi factor influence; energy analysis; outburst criterion

CLC Number:

TD712

WANG Wei， WANG Han-peng， ZHANG Bing， XU Fei. Experimental Study on Multi-Factor Influence Law and Energy Criterion of Coal and Gas Outburst[J]. Journal of Northeastern University(Natural Science), 2022, 43(4): 582-590.

References

[1]Fisne A，Esen O.Coal and gas outburst hazard in Zonguldak Coal Basin of Turkey，and association with geological parameters ［J］.Natural Hazards，2014，74(3):1363-1390.
[2]Li G，Saghafi A.Comparing potentials for gas outburst in a Chinese anthracite and an Australian bituminous coal mine ［J］.International Journal of Mining Science and Technology，2014，24(3):391-396.
[3]Chen K.A new mechanistic model for prediction of instantaneous coal outbursts—dedicated to the memory of Prof.Daniel D.Joseph ［J］.International Journal of Coal Geology，2011，87(2):72-79.
[4]Wang C，Yang S，Li X，et al.The correlation between dynamic phenomena of boreholes for outburst prediction and outburst risks during coal roadways driving ［J］.Fuel，2018，231:307-316.
[5]Sobczyk J.A comparison of the influence of adsorbed gases on gas stresses leading to coal and gas outburst ［J］.Fuel，2014，115:288-294.
[6]Choi S K，Wold M B.A mechanistic study of coal and gas outbursts［C］.2001［2021-05-26］.https://www.webofscience.com/wos/alldb/full-record/WOS: 00017189 1200044.
[7]Skoczylas N.Estimating gas and rock outburst risk on the basis of knowledge and experience—the expert system based on fuzzy logic ［J］.Archives of Mining Sciences，2014，59(1):41-52.
[8]Wold M B，Choi S K.Outburst mechanisms:coupled fluid flow-geomechanical modeling of mine development//ACARP Project C6024.1994［2021-05-26］.https://xueshu.baidu.com/usercenter/paper/show?paperid=0ff45f62715439255d1b0d582f86fd01&site=xueshu_se.
[9]Hudecek V.Analysis of safety precautions for coal and gas outburst-hazardous strata ［J］.Journal of Mining Science，2008，44(5):464-472.
[10]Sobczyk J.The influence of sorption processes on gas stresses leading to the coal and gas outburst in the laboratory conditions ［J］.Fuel，2011，90(3):1018-1023.
[11]Zhao W，Cheng Y，Jiang H，et al.Role of the rapid gas desorption of coal powders in the development stage of outbursts ［J］.Journal of Natural Gas Science and Engineering，2016，28:491-501.
[12]Tu Q，Cheng Y，Guo P，et al.Experimental study of coal and gas outbursts related to gas-enriched areas ［J］.Rock Mechanics and Rock Engineering，2016，49(9):3769-3781.
[13]Zhao H，Yin G.Study on impact of coal and gas outburst strength caused by principal stress ［J］.Disaster Advances，2010，3(4):388-391.
[14]Yang W，Lin B，Xu J.Gas outburst affected by original rock stress direction ［J］.Natural Hazards，2014，72(2):1063-1074.
[15]Wang H，Zhang B，Yuan L，et al.Gas release characteristics in coal under different stresses and their impact on outbursts ［J］.Energies，2018，11(10):2661.
[16]Wang C，Yang S，Li X，et al.Comparison of the initial gas desorption and gas-release energy characteristics from tectonically-deformed and primary-undeformed coal ［J］.Fuel，2019，238:66-74.
[17]张庆贺，李术才，王汉鹏，等.不同强度含瓦斯型煤瞬间揭露致突特征及其影响机制［J］.采矿与安全工程学报，2017(4):817-824.(Zhang Qing-he，Li Shu-cai，Wang Han-peng，et al.Influence mechanism and outburst characteristics during revealing different intensity coal containing gas ［J］.Journal of Mining & Safety Engineering，2017(4):817-824.
[18]Skoczylas N.Laboratory study of the phenomenon of methane and coal outburst ［J］.International Journal of Rock Mechanics and Mining Sciences，2012，55:102-107.
[19]胡千庭，文光才.煤与瓦斯突出的力学作用机理［M］.北京:科学出版社，2013.(Hu Qian-ting，Wen Guang-cai.Mechanical mechanism of coal and gas outburst ［M］.Beijing:Science Press，2013.)
[20]Yu B，Su C，Wang D.Study of the features of outburst caused by rock cross-cut coal uncovering and the law of gas dilatation energy release ［J］.International Journal of Mining Science and Technology，2015，25(3):453-458.
[21]李成武，付帅，解北京，等.煤与瓦斯突出能量预测模型及其在平煤矿区的应用［J］.中国矿业大学学报，2018，47(2):231-239.(Li Cheng-wu，Fu Shuai，Xie Bei-jing，et al.Establishment of the prediction model of coal and gas outburst energy and its application in Pingdingshan coal mining area ［J］.Journal of China University of Mining and Technology，2018，47(2):231-239.)
[22]An F，Yuan Y，Chen X，et al.Expansion energy of coal gas for the initiation of coal and gas outbursts ［J］.Fuel，2019，235:551-557.
[23]卢守青，张永亮，撒占友，等.软硬组合煤体塑性破坏与突出能量失稳判据［J］.采矿与安全工程学报，2019，36(3):583-592.(Lu Shou-qing，Zhang Yong-liang，Sa Zhan-you，et al.Criterion of plastic failure and outburst energy instability of soft and hard composite coal ［J］.Journal of Mining & Safety Engineering，2019，36(3):583-592.)
[24]王汉鹏，张庆贺，袁亮，等.基于CSIRO模型的煤与瓦斯突出模拟系统与试验应用［J］.岩石力学与工程学报，2015，34(11):2301-2308.(Wang Han-peng，Zhang Qing-he，Yuan Liang，et al.Coal and gas outburst simulation system based on CSIRO model ［J］.Chinese Journal of Rock Mechanics and Engineering，2015，34(11):2301-2308.)
[25]王汉鹏，张庆贺，袁亮，等.含瓦斯煤相似材料研制及其突出试验应用［J］.岩土力学，2015，36(6):1676-1682.(Wang Han-peng，Zhang Qing-he，Yuan Liang，et al.Development of a similar material for methane-bearing coal and its application to outburst experiment ［J］.Rock and Soil Mechanics，2015，36(6):1676-1682.)
[26]蒋承林，俞启香.煤与瓦斯突出机理的球壳失稳假说［J］.煤矿安全，1995(2):17-25.(Jiang Cheng-lin，Yu Qi-xiang.The hypothesis of spherical shell instability on the mechanism of coal and gas outburst ［J］.Safety in Coal Mines，1995(2):17-25.)
[27]王刚，武猛猛，王海洋，等.基于能量平衡模型的煤与瓦斯突出影响因素的灵敏度分析［J］.岩石力学与工程学报，2015，34(2):238-248.(Wang Gang，Wu Meng-meng，Wang Hai-yang，et al.Sensitivity analysis of factors affecting coal and gas outburst based on energy equilibrium model ［J］.Chinese Journal of Rock Mechanics and Engineering，2015，34(2):238-248.)
[28]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 Shou-jian，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.)
[29]张冰，王汉鹏，李术才，等.煤粒瓦斯非常压放散特征及放散模型修正［J］.中国矿业大学学报，2018(3):512-519.(Zhang Bing，Wang Han-peng，Li Shu-cai，et al.Feature and mathematical model improvement of gas non-atmospheric emission in coal particles ［J］.Journal of China University of Mining and Technology，2018(3):512-519.)
[30]王汉鹏，张玉强，袁亮，等.煤粒初始释放瓦斯膨胀能的影响规律与温度效应分析［J］.采矿与安全工程学报，2019，36(5):1052-1060.(Wang Han-peng，Zhang Yu-qiang，Yuan Liang，et al.Analysis of influence law and temperature effect of initial released gas expansion energy of the coal grain ［J］.Journal of Mining & Safety Engineering，2019，36(5):1052-1060.)［31］Xu L，Jiang C.Initial desorption characterization of methane and carbon dioxide in coal and its influence on coal and gas outburst risk ［J］.Fuel，2017，203:700-706.［32］熊阳涛，黄滚，罗甲渊，等.煤与瓦斯突出能量耗散理论分析与试验研究［J］.岩石力学与工程学报，2015，34(sup 2):3694-3702.(Xiong Yang-tao，Huang Gun，Luo Jia-yuan，et al.Theoretical analysis and experimental study of energy dissipation of coal and gas outburst ［J］.Chinese Journal of Rock Mechanics and Engineering，2015，34(sup 2):3694-3702.)