摘要
为研究残煤复采区域内空巷中瓦斯分布规律、计算一次采动后空巷内剩余瓦斯含量,通过理论计算得出了一次采动后瓦斯涌出量以及一次采动后空巷内剩余瓦斯含量的计算公式,得出了密闭空间瓦斯积聚规律。研究结果表明:一次采动后空巷密闭后煤壁向空巷内的瓦斯涌出量为关于瓦斯运移时间的函数,且根据瓦斯运移时间的不同,瓦斯涌出量的计算公式也不相同。通过对现场空巷内瓦斯涌出量以及瓦斯压力的测量,验证了所得计算公式的正确性。
In order to research gas distribution laws in abandoned roadway of residual coal mining area, calculate the remaining amount of gas in abandoned roadway after fist mining, through theoretical analysis and calculation, we got the formula of the amount and remaining amount of gas in abandoned raodway after fist mining, and obtained the gas accumulation laws in confined space. The results showed that the amount of gas released from coal wall to the abandoned roadway after fist mining is a function of gas migration time, and according to the different gas migration time, the calculation formulas of gas emission are different.Through measuring gas emission and gas pressure in abandoned roadway at the scene of the project, we verified the correct of the formula.
作者
刘祥龙
江东海
LIU Xianglong;JIANG Donghai(Lu＇ an University,Shanxi Lu＇ an Mining（Group）Co.,Ltd.,Changzhi 046204,China;School of Mining and Safety Engineering,Shandong University of Science and Technology,Qingdao 266590,China)
出处
《煤矿安全》
CAS
北大核心
2018年第7期151-153,158,共4页
Safety in Coal Mines
关键词
残煤复采
空巷
一次采动
剩余瓦斯
瓦斯分布规律
residual coal mining
abandoned roadway
fist mining
remaining gas
gas distribution law
