开采风氧化带边界煤层安全煤岩柱高度的预计方法

Prediction Method of Safe Coal Pillar Height in the Boundary Coal Seam of Air Oxidation Zone

针对开采风氧化带边界煤层存在的水害威胁问题,整理分析覆岩岩性及结构,对开采垮落带发育高度进行预计并确定安全煤岩柱类型,通过分析隐伏露头区工作面的覆岩破坏发育规律及水害威胁,根据隐伏露头区工作面的设计原则对安全煤岩柱高度进行预计,确定合理的安全煤岩柱类型及高度,制定合理的开采方案。

In view of the problem of water hazard in the boundary coal seam of mining air oxidation zone,the overburden lithology and structure analysis are arranged to predict the development height of mining caving zone and determine the type of safe coal and rock pillar,according to the design principle of working face in concealed outcrop area,the safe coal and rock pillar height is predicted,and the reasonable safe coal and rock pillar type and height are determined,draw up a reasonable mining plan.