Influence of adsorption gas content on coal and gas outburst and energy analysis
WANG Hanpeng1，ZHANG Bing1，YUAN Liang1，2，3，LI Qingchuan1，LI Shucai1，XUE Junhua2，ZHOU Wei2，ZHOU Jie2
(1. Research Centre of Geotechnical and Structural Engineering，Shandong University，Jinan，Shandong 250061，China；2. State Key Laboratory of Deep Coal Mining and Environmental Protection，Huainan Mining Group Corporation，Huainan，Anhui 232001，China；3. Faculty of Safety Engineering，China University of Mining and Technology，Xuzhou，Jiangsu 221116，China)
Abstract：The high pressure gas in coal is mainly in adsorbed state. In order to study the influence of adsorbed gas content on outburst，He，N2，CH4 and CO2 have adsorption in increasing order and were thus used to simulate the different adsorbed gas contents under the same pressure. The above four gases of 0.75 MPa were applied to the briquettes of the same properties to simulate the coal with the same free gas content and with different adsorbed gas contents. 16 tests were conducted to 4 kinds of briquettes with different strengths. 9 outburst phenomena occurred in these tests，and the test with He which cannot be absorbed also burst out. These test results show that the risk and the intensity of outburst increased when the adsorbed gas content increased. A method to determine the expansion energy of adsorbed gas was proposed. The elastic energy of coal，the expansion energy of adsorbed gas and free gas，the energy consumption of coal crushing and throwing power were calculated. The potential energy and energy consumption were basically equal，which proved the rationality of the measurement method of expansion energy of adsorbed gas. Energy analysis indicated that the expansion energy of adsorbed gas accounted for 6.5%–25.6% of the potential energy，and the ratio increased with the increase of adsorbed gas content.
王汉鹏1，张 冰1，袁 亮1，2，3，李清川1，李术才1，薛俊华2，周 伟2，周 杰2. 吸附瓦斯含量对煤与瓦斯突出的影响与能量分析[J]. 岩石力学与工程学报, 2017, 36(10): 2449-2456.
WANG Hanpeng1，ZHANG Bing1，YUAN Liang1，2，3，LI Qingchuan1，LI Shucai1，XUE Junhua2，ZHOU Wei2，ZHOU Jie2. Influence of adsorption gas content on coal and gas outburst and energy analysis. , 2017, 36(10): 2449-2456.
[1] HUDECEK V. Analysis of safety precautions for coal and gas outburst-hazardous strata[J]. Journal of Mining Science，2008，44(5)：464–472.
[2] 鲜学福，辜 敏，李晓红，等. 煤与瓦斯突出的激发和发生条件[J]. 岩土力学，2009，30(3)：577–581.(XIAN Xuefu，GU Min，LI Xiaohong，et al. Excitation and occurrence conditions for coal and gas outburst[J]. Rock and Soil Mechanics，2009，30(3)：577–581.(in Chinese))
[3] 袁 亮. 我国深部煤与瓦斯共采战略思考[J]. 煤炭学报，2016，41(1)：1–6.(YUAN Liang. Strategic thinking of simultaneous exploitation of coal and gas in deep mining[J]. Journal of China Coal Society，2016，41(1)：1–6.(in Chinese))
[4] 郑哲敏. 从数量级和量纲分析看煤与瓦斯突出的机理[C]// 煤与瓦斯突出机理和预测预报第三次科研工作机学术交流会议论文集. [S.l.]：[s.n.]，1983：3–11.(ZHENG Zhemin. Analysis of coal and gas outburst mechanism from the orders of magnitude and dimensional[C]// The Third Scientific Work for Academic Exchange of Conference Coal and Gas Outburst Mechanism and Prediction. [S.l.]：[s.n.]，1983：3–11.(in Chinese))
[5] 中华人民共和国行业标准编写组. 防治煤与瓦斯突出规定[S]. 北京：煤炭工业出版社，2009.(The Professional Standards Compilation Group of People?s Republic of China. Provisions for the prevention and control of coal and gas outbursts[S]. Beijing：China Coal Industry Publishing House，2009.(in Chinese))
[6] 王维忠，陶云奇，许 江，等. 不同瓦斯压力条件下的煤与瓦斯突出模拟实验[J]. 重庆大学学报，2010，33(3)：82–86.(WANG Weizhong，TAO Yunqi，XU Jiang，et al. Simulation of coal and gas outburst with different gas pressure[J]. Journal of Chongqing University，2010，33(3)：82–86.(in Chinese))
[7] 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)：2 769–2 774.(TANG Jvpeng，YANG Senlin，WANG Yalin，et al. Experiment of coal and gas outbursts under ground stress and gas pressure in deep mines[J]. Rock and Soil Mechanics，2014，35(10)：2 769–2 774.(in Chinese))
[8] 高 魁，刘泽功，刘 健. 瓦斯在石门揭构造软煤诱发煤与瓦斯突出中的作用[J]. 中国安全科学学报，2015，25(3)：102–107.(GAO Kui，LIU Zegong，LIU Jian. Effect of gas on coal and gas outburst induced by rock crosscut tectonic soft coal uncovering[J]. China Safety Science Journal，2015，25(3)：102–107.(in Chinese))
[9] 袁 亮，薛 生. 煤层瓦斯含量法确定保护层开采消突范围的技术及应用[J]. 煤炭学报，2014，39(9)：1 786–1 791.(YUAN Liang，XUE Sheng. Defining outburst-free zones in protective mining with seam gas content-method and application[J]. Journal of China Coal Society，2014，39(9)：1 786–1 791.(in Chinese))
[10] 齐黎明，陈学习，程五一. 瓦斯膨胀能与瓦斯压力和含量的关系[J]. 煤炭学报，2010，35(8)：105–108.(QI Liming，CHEN Xuexi，CHENG Wuyi. Relationship of expansion energy of gas with gas pressure and content[J]. Journal of China Coal Society，2010，35(8)：105–108.(in Chinese))
[11] 史广山，魏风清. 基于煤粒扩散理论的吸附瓦斯解吸膨胀能研究[J]. 安全与环境学报，2013，13(4)：200–203.(SHI Guangshan，WEI Fengqing. Study on desorption expansion energy of adsorptive gas based on diffusion theory[J]. Journal of Safety and Environment，2013，13(4)：200–203.(in Chinese))
[12] 刘明举，颜爱华. 煤与瓦斯突出的热动力过程分析[J]. 焦作工学院学报：自然科学版，2001，20(1)：1–6.(LIU Mingju，YAN Aihua. Thermodynamic process analysis of coal and gas outbursts[J]. Journal of Jiaozuo Institute of Technology：Natural Science，2001，20(1)：1–6.(in Chinese))
[13] 李成武，解北京，曹家琳，等. 煤与瓦斯突出强度能量评价模型[J]. 煤炭学报，2012，37(9)：1 547–1 552.(LI Chengwu，XIE Beijing，CAO Jialin，et al. The energy evaluation model of coal and gas outburst intensity[J]. Journal of China Coal Society，2012，37(9)： 1 547–1 552.(in Chinese))
[14] 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，2013：286–291.(HU Qianting，WEN Guangcai. Mechanical mechanism of coal and gas outburst[M]. Beijing：Science Press，2013：286–291.(in Chinese))
[15] 李 铁，梅婷婷，李国旗，等. “三软”煤层冲击地压诱导煤与瓦斯突出力学机制研究[J]. 岩石力学与工程学报，2011，30(6)：1 283–1 288.(LI Tie，MEI Tingting，LI Guoqi，et al. Mechanism study of coal and gas outburst induced by rockburst in“Three-Soft”coal seam[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(6)： 1 283–1 288.(in Chinese))
[16] 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)：2 301– 2 308.(WANG Hanpeng，ZHANG Qinghe，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)：2 301–2 308.(in Chinese))
[17] 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)：1 676–1 682.(WANG Hanpeng，ZHANG Qinghe，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)：1 676–1 682. (in Chinese))
[18] 李成武，解北京，曹家琳，等. 煤与瓦斯突出强度能量评价模型[J]. 煤炭学报，2012，37(9)：1 547–1 552.(LI Chengwu，XIE Beijing，CAO Jialin，et al. The energy evaluation model of coal and gas outburst intensity[J]. Journal of China Coal Society，2012，37(9)： 1 547–1 552.(in Chinese))
[19] 于宝海，王德明. 煤层释放瓦斯膨胀能研究[J]. 采矿与安全工程学报，2013，30(5)：773–777.(YU Baohai，WANG Deming. Research on dilatation energy of released gas from coal seam[J]. Journal of Mining and Safety Engineering，2013，30(5)：773–777.(in Chinese))
[20] 张 浩，高建宁，崔永杰. 瓦斯膨胀能计算方法的热力学分析[J]. 煤矿安全，2015，46(3)：145–148.(ZHANG Hao，GAO Jianning，CUI Yongjie. Thermodynamic analysis of gas expansion energy calculation method[J]. Safety in Coal Mines，2015，46(3)：145–148. (in Chinese))
[21] 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(增2)：3 694–3 702. (XIONG Yangtao，HUANG Gun，LUO Jiayuan，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(Supp.2)：3 694–3 702.(in Chinese))
[22] 蔡成功，熊亚选. 突出危险煤破碎功理论与试验研究[J]. 煤炭学报，2005，30(1)：63–66.(CAI Chenggong，XIONG Yaxuan. Theoretical and experimental study on crushing energy of outburst- proneness coal[J]. Journal of China Coal Society，2005，30(1)：63–66.(in Chinese))
2017, Vol. 36 
