店坪矿切顶卸压无煤柱开采设计方案研究

摘要

This paper introduces the general situation of No.5-200 working face in Dianping Coal Mine.Based on the geological conditions around the reserved roadway, studies the theory of pressure relief with roof cutting originated by the China Mining University (Beijing), after a series of theoretical calculations and demonstration, It is decided to adopt the design scheme of gob side entry retaining, of pressure relief with roof cutting at No-pillar mining condition, and the parameters for the pre-splitting blasting of the roof are also designed, the design scheme has being implemented smoothly in No.5-200 working face in DianPing coalmine with comprehensive qualified results.%介绍了店坪煤矿5-200工作面的总体情况,根据预留巷道周围的地质条件,通过对中国矿业大学(北京)切顶卸压理论的研究,经过一系列理论计算及方案论证,决定采用切顶卸压沿空留巷无煤柱技术开采方案,并设计了切顶留巷顶板预裂爆破参数,提出了切顶卸压沿空留巷无煤柱开采设计方案;已在店坪煤矿5-200采煤工作面推广应用,取得了阶段性的良好效果、较好的安全评价和经济效益.