摘要
为了确定2107底抽巷水力冲孔有效影响半径,利用COMSOL Multiphysics数值模拟软件建立水力冲孔模型,模拟分析不同冲煤量情况下水力冲孔周围瓦斯压力变化规律,结果表明:随冲煤量的增加,水力冲孔后瓦斯抽采效果越为显著。采用压降法对该矿冲煤量1.0 t/m的水力冲孔有效影响半径进行现场考察,实测结果与模拟结果基本一致,说明了水力冲孔卸压增透效果显著。
In surface, the order to determine the COMSOL Muhiphysics flushing, which used to analysis gas show that the effect of gas the pressure drop method consistent with numerical drainage effective influence radius of hydraulic flushing in 2107 working numerical simulation software to establish model of hydraulic pressure change of different amount of overflow coal, the results become more significant as amount of overflow coal is increasing, is used to inspect the hydraulic flushing with 1.0 t/m, which results are simulation＇s results. It illustrates the mechanism of pressure relived and permeability enhanced of hydraulic flushing
出处
《煤炭技术》
北大核心
2017年第9期183-185,共3页
Coal Technology
关键词
水力冲孔
有效影响半径
冲煤量
hydraulic flushing
effective influence radius
amount of overflow coal
