倾斜煤层采空区卸压煤层气贮存空间分布

Spatial Distribution of Coalbed Methane Storage in Different Inclined Coal Seam

运用FLAC3D软件研究倾斜煤层开挖后的三维应力分布,并划分出不同倾角采空区卸压煤层气的贮存空间。结果表明:不同倾角采空区沿竖直方向和倾斜方向的三向应力随距离采空区基准线远近的变化规律;不同倾角采空区的煤层气贮存空间呈近似"六边形"分布,且随煤层倾角的增大而顺时针旋转。

Uses FLAC3D software to study the three-dimensional stress distrihution atter excavanon of inclined coal seam, and divides the storage space of coalbed methane with different inclination. The results show that the three-way stress of the mined-out area along the vertical and oblique directions varies with the distance from the mined-out area. The storage space of the coalbed methane in the different-inclined mined-out area is approximately ＂hexagonal＂, and clockwise rotation with the coal caving angle increases.