突出煤层下分层放顶煤开采研究与应用

Research and Application of Top Coal Caving under Stratified Sub-level Coal Seam

为减少突出煤层分层开采长期重复投入,方山煤矿采用合理的设计方案,采取上隅角抽放、上风巷高位钻孔抽放等瓦斯治理预防措施,选用合理的综采放顶煤支架,制定有效的放煤管理制度,保证了工作面的安全回采,积累了相关经验。

In order to reduce long-term repeated investment in outburst coal seam slicing mining, Fangshan Coal Mine adopts reasonable design scheme, adopts gas control and prevention measures such as upper corner drainage, upper air roadway high-level borehole drainage, selects reasonable fully mechanized top coal caving support, formulates effective caving management system, guarantees safe mining of working face and accumulates relevant experience.