淮南矿区深部煤巷条带卸压增透措施优选与应用

Optimization and Application of Pressure Relief and Permeability Enhancement Measures for Deep Coal Roadway Strip in Huainan Mining Area

基于动力危险属性类别、围岩级别与煤岩层瓦斯地质条件,提出了煤巷条带卸压增透措施优选方法,并在3种典型瓦斯地质条件下进行了成功应用,有效影响半径分别提高了1.6～2.52倍、1.1～4倍、1.21～1.5倍。

Based on the power risk attribute class,surrounding rock grade and the gas geological condition,the optimization method of pressure relief and permeability enhancement measures for coal roadway strip is put forward,it has been successfully applied in three typical gas geological conditions.The effective radius of the gas extraction have been increased by 1.6 to 2.52 times,1.1 to 4 times and 1.21 to 1.5 times respectively.