顾北煤矿半孤岛工作面矿压显现规律研究

Study on Mine Strata Pressure Behavior Law of Coal Mining Face in Half Seam Island of Gubei Mine

孤岛工作面沿空巷道矿压显现剧烈,支护难度大。文章以顾北煤矿1212(1)综采工作面为研究对象,首先分析了煤层的地质条件与顶底板的情况,并制定了矿压观测的内容与方法,进而对综采支架工作阻力、巷道围岩变形进行实测分析,得到矿压显现的规律,从而为工作面的高产、高效、安全、低耗创造良好的技术条件。

The mine strata pressure behavior of the gateway along the goaf of the coal mining face was serious and the roof of the gateway was very difficult to be supported. Base on No. 1212 （ 1 ） fully mechanized coal mining face of Gubei Mine as a study object, the geological conditions of the seam and the roof and floor conditions were firstly analyzed and the contents and method of the mine strata pressure observation were set up. A site measurement was conducted on the work resistance of the powered support in the coal mining face and the surrounding rock deformation of the gateway. The mine strata pressure behavior law was obtained and thus could provide the technical conditions for the high production, high efficient, safety and low energy consumption of the coal mining face.