抛掷爆破侧压三角煤开采方案的研究

Research on the mining scheme of the side triangle coal with throwing blasting

抛掷爆破将造成煤层顶板水平以下侧压三角煤形成爆堆,整个三角煤开采方案由爆堆剥离与对应的三角煤回收共同制约。由于剥离作业空间狭窄,采剥时空关系紧张,需要研究爆堆合理开采方法,并分析影响因素,确定三角煤最优回收方案。

The throwing blasting can result in blasted-pile,formed by side triangle coal which is below the level of coal seam roof, and the whole triangle coal mining scheme will be controlled by blasted-pile strip and corresponding reclaim of triangle coal.Due to the narrow space of stripping operation and the tension between time and space, it is necessary to study the rational mining method of blasted-pile and analyze the influencing factors to determine the optimal reclaim scheme of triangle coal.