缓倾斜薄煤层综采工作面矿压显现逻辑分析

Logical Analysis of Mine Pressure in Fully Mechanized Mining Face of Gently Inclined Thin Coal Seam

为了保证煤炭资源的充分利用,大多数矿井制定了浅部薄煤层开采计划。但由于该部分煤层开采具备复杂性、多样性的特点,尤其是在坚硬顶板下,顶板强度较高,开采时经常遇到剧烈来压的情况。以A煤矿薄煤层10101综采工作面矿压监测研究为出发点,对矿压显现特征以及压力影响范围进行总结。结果显示,工作面初次来压步距为19.0m,周期来压步距为6.87m,来压情况十分明显,还会对超前支撑产生影响,具体影响范围为18m左右。

In order to ensure the full utilization of coal resources,most mines have developed shallow thin coal seam mining plans.But because the mining conditions of this part of the coal seam have the characteristics of complexity and diversity,especially under the hard roof,the roof strength is high,mining often encountered severe pressure.Based on the study on mine pressure monitoring of 10101 fully mechanized mining face in thin coal seam of A Coal Mine,this paper summarized the characteristics of mine pressure and the influence range of pressure.The results show that the initial pressing step distance of the working face is19.0 m,and the periodic pressing step distance is 6.87 m;the pressing situation is very obvious,having an impact on the advance support,and the specific influence range is about 18 m.