The Characteristics of Gas Emission in High-output and High-Efficiency Super-Length Fully-Mechanized Top Coal Caving Face
This paper have studied the characteristics of gas emission and the influence of strata movement, advancing velocity, production capacity and gas extraction capability on the gas emission in K8206 working face at Third mine of Yangquan coal company, which is a high-output and high-efficiency super-length fully-mechanized top coal caving face. The regression equation of the relative gas emission rate of the working face and the production capacity, and the one of the gas emission rate of the adjacent layers per meter as advancing and the advancing velocity are built respectively. It can be concluded: 1) the gas emission of the adjacent layers is controlled by the movement of key strata; 2) the gas emission of the working face needs to be exhausted by air is affected by the capability of gas extraction.3) when the advancing velocity is up to 3. 5～5.5m/d, the gas emission of adjacent layers almost keeps stable; 4) when the production is up to 8000～12000t/d, the gas emission of working face almost keeps stable;
high-output and high-efficiency super-length fully-mechanized top coal caving face the characteristics of gas emission strata movement gas extraction
QU Qingdong XU Jialin YANG Shengqiang WU Renlun
School of Mining and Safety Engineering, China University of Mining &Technology, Xuzhou, Jiangsu, 221008
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
1400-1406
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）