Research on Rapid Excavation Technology of Roadway in Coal Seam with the Risk of Coal and Gas Outburst

被引:3
|
作者
Hu, Shoutao [1 ]
Nie, Baisheng [1 ]
Liu, Mingju [2 ]
Liu, Yanwei [2 ]
Li, Xiangchun [1 ]
Guo, Jianhua [1 ]
机构
[1] China Univ Min & Technol Beijing, Beijing 10083, Peoples R China
[2] Henan Polytechn Univ, Jiaozuo 454003, Peoples R China
关键词
long drilling along seam; pressure relief and permeability enhancement; heading face;
D O I
10.4028/www.scientific.net/AMR.524-527.325
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
According to the questions of long eliminating coal and gas outburst period, large projects and slow driving came from the regional measurement of drilling hole,the paper select 2371 (1) rail transport roadway as experiment for using along seam long drilling as a regional measurement to eliminate coal and gas outburst. Since the regional measurement of along seam long drilling had been carried out, the remaining gas content decreased more than 60%, max S-max was 5.4kg/m, max q(max) was 2.01/min.Both S-max and q(max) were not beyond the standard. Gas concentrations were not overrun. Gas emission decreased in the roadway afterward. The regional measurement eliminated the risk of coal and gas outburst in effect. Heading face promoted 423m forward safely. The max January footage could reach 120m.Achieve driving of heading face safely and fast.
引用
收藏
页码:325 / +
页数:2
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