露天开挖法在治理浅埋藏采空区煤层自燃火区中的应用

The Applications of Strip Mining in the Mined-out Shallow Buried Coal Seam with Spontaneous Combustion Fire Zone Control

分析了露天开挖法、黄土覆盖法和钻孔注浆等灭火方法的灭火工程和灭火效果,确定了采用露天开挖法对浅埋藏采空区自燃煤层火区进行灭火,并在三家窑煤矿进行了应用。实践表明,露天开挖火区法在治理浅埋藏采空区自燃煤层火区中,具有施工简单、灭火效果好、且能回收火区中的残煤,具有较好的经济效益和推广价值。

It is determined to take strip mining to govern the mined-out shallow buried coal seam with spontaneous combustion fire zone, by comparing the strip mining, loess covering and the drilling hole slurry-injection in the aspects of fire extinguishing effect and resilience, which is applied in San Jiayao Coal Mine, Shuozhou, Shanxi Province. The strip mining has a remarkable economic result, is worth extensively spreading, because of the simplicity of the construction, completely of the fire extinguishing effect and recycling the remnant coal in the fire zone