煤矿安全2017，Vol.48Issue(11)：1-4,8,5.DOI:10.13347/j.cnki.mkaq.2017.11.001
基于物理模拟的煤与瓦斯突出主控因素及能量演化过程
Control Factors of Coal and Gas Outburst and Energy Evolution Based on Physical Simulation
摘要
Abstract
Briquette coal which has similar physical properties with raw coal was produced for this experiment.Energy evolution process and main factors of coal and gas outburst were researched by the self-made simulation system.The research shows that there is a critical pressure (0.75 MPa) in this outburst experiment.The weight of outburst coal reaches up to 28.1％,and the maximum distance is 14.1 m when the gas pressure and axial load is 0.75 MPa to 1.25 MPa and 5 MPa to 20 MPa,respectively.During the outburst process,the energy is constantly decay.The results show that the pressure sensors outside the high pressure cavity first responded,and the sensors at inner side delayed approximately 0.1 s.Orthogonal experiment shows that the gas pressure is the main factor controlhng coal and gas outburst,but the stress and moisture content also play an important role.The outburst intensity rapid decreases with a nonlinear trend when the moisture content increases from 2％ to 7％.关键词
煤与瓦斯突出/物理模拟/主控因素/能量演化/瓦斯压力Key words
coal and gas outburst/physical simulation/main factors/energy evolution/gas pressure分类
矿业与冶金引用本文复制引用
唐一博,袁亮,薛俊华,薛生..基于物理模拟的煤与瓦斯突出主控因素及能量演化过程[J].煤矿安全,2017,48(11):1-4,8,5.基金项目
国家自然科学基金资助项目(国家重大仪器设备专项)(51427804) （国家重大仪器设备专项）
山西省人才专项(优秀人才科技创新项目)资助项目(201605D211002) （优秀人才科技创新项目）
山西省重点研发计划(国际合作)资助项目(201603D421010) （国际合作）
