低透气性煤层水力冲孔增透合理冲孔煤量的确定  

Determination of Reasonable Punching Coal Amount Through Hydraulic Flushing Permeability Increasing in Low Permeability Coal Seam

作　　者：袁德铸[1] 李学臣[1] 

机构地区：[1]焦作煤业(集团)有限责任公司,河南焦作454000

出　　处：《煤矿安全》2016年第9期180-182,共3页Safety in Coal Mines

摘　　要：水力冲孔是低透气性煤层普遍采用的卸压增透措施,合理确定钻孔的冲孔煤量,能够有效保证冲孔区域的瓦斯抽采浓度,加快瓦斯抽采达标速度。针对现场应用水力冲孔增透措施后瓦斯抽采方面存在的问题及对煤巷掘进产生的影响进行分析,探讨了水力冲孔增透合理冲孔煤量的确定方法,进一步指导低透气性煤层瓦斯治理工作。Hydraulic flushing is a commonly used measure on pressure relief and permeability increasing for low permeability coal seams, to reasonably determine the coal amount of punching drilling can effectively guarantee the gas drainage concentration of flushing area, speed up the standard speed of gas drainage. In this paper, the problems of gas drainage and the influence of hydraulic flushing on coal roadway driving are analyzed in view of the problems in the field application; we discussed the determination method of the rea- sonable punching coal amount of hydraulic flushing hole, which further guides control work of gas in low permeability coal seams.

关 键 词：低透气性煤层 卸压增透 水力冲孔 煤量 瓦斯抽采 

分 类 号：TD712[矿业工程—矿井通风与安全]