浅埋深薄基岩工作面合理采高的确定

On reasonable mining height under shallow cover and thin strata geological condition

采用FLAC3D三维数值模拟方法,全面分析了开采2-2煤层不同采高时的工作面超前压力变化规律,从而提出了开采浅埋深、薄基岩三不拉煤矿采区2-2煤层的合理综合机械化开采高度。

By using FLAG^3D numeric simulation, the paper analyses the change of abutment pressure with the different mining height in mining 2^-2 coal seam. Then deduces a reasonable mining height in the condition of shallow cover and thin strata.