Study on Gas Distribution and Gas Emission of Driving Heading
Through the analysis on gas storage and migration in coalseam of driving heading,the mathematics model of gas flow in coal is established. Finite Difference Method is applied to calculate the gas flow of coalseam.The program is coded to obtain the numerical solution of the mathematics model.Taking the method of numerical simulation to study the gas flow in coalseam of driving heading.Uniform and ununiform distribution of permeability of coal are considered. By simulation,the distribution of gas pressure and the distribution of gas emission on the wall along the axis of driving heading are obtained.And the difference obtained between the two ends of driving heading, opening and heading, and the middle area of laneway is distinct on gas distribution and gas emission.
driving heading gas distribution gas emission numerical simulation permeability
WU Jingang GAO Jianliang
Department of Safety Engineering, Zheng zhou Economics&Management Institute, Zhengzhou 451191,China School of Safety Science and Engineering,Henan Polytechnic University,Jiaozuo 454003, China
国际会议
The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)
河南焦作
英文
2757-2763
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）