建(构)筑物下压煤开采方案设计及可行性研究

Design and feasibility study of coal mining scheme under buildings(structures)

为了解决某煤矿建(构)筑物下压煤问题,结合开采现状、煤层赋存地质条件、生产技术条件及地面建筑物情况分析,通过理论计算、概率积分法对其条带开采方案进行设计,并对其进行经济效益分析,验证其可行性。结果表明,重点保护建(构)筑物控制变形等级采后维修方案,在技术与经济效益上可行,对今后煤层开采具有指导意义。

In order to solve the problem of the coal pressing under buildings(structures)in a certain coal mine,combining with the current mining situation,the geological conditions of the coal seam,the production technical conditions and the analysis of the ground buildings,the strip mining plan was designed based on the theoretical calculations and the probability integral method.Economic benefit analysis was carried out and the feasibility was verified.Results showed that the maintenance plan after mining for key protected buildings(structures)with control deformation levels was feasible in terms of technical and economic benefit,and had the guiding significance for the future coal seam mining.