本文選題：超遠距離 + 下保護層開采��； 參考：《煤炭科學研究總院》2014年碩士論文

【摘要】：近年來,隨著煤礦礦井開采強度的不斷加大和開采深度的逐漸增加，尤其是煤層透氣性差、瓦斯含量比較高的突出煤層開采過程中，礦井的安全生產(chǎn)受到了嚴重的威脅，長期的理論和實踐證明，開采保護層及抽采被保護層的卸壓瓦斯是一種十分有效的區(qū)域性防突措施。 本文主要是針對超遠距離下保護層開采及強化瓦斯抽采在陽泉的礦區(qū)的應用進行研究。采用了理論分析、相似模擬、現(xiàn)場測定、數(shù)據(jù)處理收集、整理的研究方法和手段。通過參考淮南礦區(qū)保護層開采的成功案例，并結(jié)合陽泉礦區(qū)的實際情況，引入了相對層間距的概念。結(jié)果表明開采超遠距離下保護層并對卸壓瓦斯進行抽采后，，被保護層的應力降低，透氣性增強，瓦斯的各項基礎參數(shù)降到了突出臨界值以下，徹底地消除了突出危險性。 通過對超遠距離保護層開采及強化瓦斯抽采在陽泉礦區(qū)應用的研究，將為陽泉礦區(qū)提供重要的防突方法，產(chǎn)生可觀的經(jīng)濟效益，也會對其它礦區(qū)有重要的參考價值。
[Abstract]:In recent years, with the increasing of mining intensity and the increasing of mining depth, especially in the mining process of outburst coal seam with poor permeability of coal seam and high gas content, the safe production of coal mine has been seriously threatened. It has been proved in theory and practice for a long time that the unpressurized gas from mining protective layer and draining protected layer is a very effective regional anti-outburst measure. In this paper, the application of protection layer mining and enhanced gas drainage in Yangquan mining area is studied. The research methods and means of theoretical analysis, similarity simulation, field measurement, data processing and collection are adopted. By referring to the successful case of mining protective layer in Huainan mining area and combining the actual situation of Yangquan mining area, the concept of relative interval between layers is introduced. The results show that after the protection layer is mined and the pressure relief gas is extracted, the stress of the protective layer is reduced, the gas permeability is enhanced, the basic parameters of gas are reduced below the critical value of outburst, and the outburst danger is completely eliminated. Through the study on the application of ultra-long distance protective layer mining and enhanced gas drainage in Yangquan mining area, it will provide an important anti-outburst method for Yangquan mining area, produce considerable economic benefits, and also have important reference value for other mining areas.
【學位授予單位】：煤炭科學研究總院
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TD712.6

【引證文獻】

相關碩士學位論文 前1條

1 李峰;薄煤層下保護層開采保護范圍及卸壓瓦斯抽采研究[D];貴州大學;2016年

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