“三软”煤层轻放工作面端面顶板压力控制方法与对策

The Measures of Controlling the Stress of the Top Roof of the Working Face of the "Three-soft" Coal Bed

采用“压力引导法”,有效地解决了端面压力问题,有利于在“三软”煤层中推行轻放工艺,提高矿井机械化水平,增加矿井生产能力。

As far as the stope is concerned, the control of the stress of its end floor is all along a big problem. The control of the stress of the ＂three-soft＂ coal bed is especially difficult. This article applies the stress-channeling technology to the solution of the problem concerned with the stress of coal bed. The article upholds the practice of the technology of discharging the stress gently in the ＂three-soft＂ coal bed and the enhancement of the mechanization of mines so as to improve the productivity of mines.