Calculating Method of Actual Gas Emission Rate and Application to Gas Drainage Faces
With greatly increasing gas drainage volume in working faces, traditional calculating methods have no longer adapted well to working faces of high gas drainage efficiency. In order to exactly calculate actual gas emission volume in working faces, the new calculating method was put forward that gas drainage rate was added to total actual gas emission volume after analyzing lots of gas data and ventilation data of many gas drainage faces in Chengzhuang coal mine. The multi-group gas drainage volumes are processed as a whole during the calculation, the regression relationship was found between gas drainage rate and time, and the gas drainage rate data were accumulated at different intervals, so the error caused by traditional methods can be greatly reduced. Then the new method was illuminated by the example.
gas drainage gas emission rate working face calculating method
CHEN Jingyi YAN Jiangwei ZHANG Yugui ZHANG Zimin
Institute of Gas-geology, 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
1340-1343
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）