钻孔煤粉量变化规律在区段煤柱合理参数确定中的应用

Application of Coal Dusts Variation in Drill Hole in Determining Reasonable Parameters of Coal Pillars

通过对钻孔煤粉量变化规律与支承压力分布关系的研究 ,论证了可以利用钻孔煤粉量变化来推测支承压力分布规律。实测得到了平煤集团十三矿大倾角综放工作面区段煤柱侧向支承压力分布规律 ,为合理区段煤柱留设尺寸确定提供了基础依据。

By researching the relation between variation-law of coal dusts in drill hole and distribution of abutment pressure, it demonstrated that the distribution of abutment pressure can be calculated by using variation of coal dusts in drill hole.Based on the theory, the distribution of abutment pressure on the sublevel coal pillar is measured in one fully mechanized sublevel caving face in a steeply inclined seam of the No.13 Coalmine of Pingtingshan Coal Mining Group Co., which provides the basic data for designing reasonable coal pillar.