某煤矿煤层群上行开采可行性分析研究

Feasibility Analysis of Upward Mining of Coal Seam Group in a Coal Mine

在介绍煤矿基本条件的基础上,总结获得并建立了煤矿煤层、岩层构成的物理模型及数值模型,并确定了各岩层、煤层的基础参数;分析认为煤矿开采8-2号煤层采用上行开采法开采具有必须性和紧迫性,而研究采用开采法开采8-2号煤层是否具有可行性,非常迫切且对煤矿的可持续发展具有决定性作用;从计算得到的11号煤层顶板三带高度及8-2号煤层所处位置方面、和数值模拟研究所得11号煤开采顶板塑性区影响范围及8-2号煤层所处位置方面,均认为采用上行开采法开采8-2号煤层具有可行性。

On the basis of introducing the basic conditions of coal mine, the physical model and numerical model of coal seam and rock formation are obtained and established, and the basic parameters of each rock layer and coal seam are determined. The analysis shows that it is necessary and urgent to use the upward mining method to exploit coal seam no. 8-2, while the study on the feasibility of using the mining method to exploit no. 8-2 is very urgent and plays a decisive role in the sustaina-ble development of coal mine. In terms of the height of the third belt of the roof of no. 11 coal seam and the location of no. 8-2 coal seam, as well as the influence range of the plastic area of no. 11 coal seam and the location of no. 8-2 coal seam, it is considered feasible to use the upward mining method to mine no. 8-2 coal seam.