煤层群内多重保护层开采的防突试验研究

基于煤与瓦斯突出的煤层群开采所遇到的瓦斯问题，针对煤层群开采的特点，通过多参数的考察，对多重上保护层开采进行了试验研究，完善了保护层开采的基本理论；对保护效果、保护范围和合理参数进行综合分析、确定，得出了煤层群开采保护层过程中多重保护的具体指标和效果，建立了多重保护层效果考察及评价方法，对淮南矿区煤层群开采消除突出危险效果显著。研究成果对于类似条件突出矿井的保护层开采具有一定的指导意义和应用价值。

EXPERIMENTAL STUDY ON COUNTERMEASURES FOR COAL AND GAS OUTBURST OF MINING MULTIPLE PROTECTIVE LAYERS IN COAL SEAMS

For the methane problems of mining coal seams, this paper perfects the related theories through studying mining multiple upper protective layers. By examining several parameters, it synthetically analyses and ascertains the protected effectiveness, protected scope, and reasonable parameters. The paper suggests the specific indexes and the effectiveness of mining multiple protective layers in coal seams. The method for evaluating and reviewing protective effect was set up. The study result has been really applied to Huainan mining group, and will give references to mining area with analogous conditions for prediction, prevention and control of methane.