山东煤炭科技
山東煤炭科技
산동매탄과기
Shandong Coal Science and Technology
2014年
12期
104-105,110
,共3页
低渗透性%瓦斯突出%新型封孔材料%大直径瓦斯抽放
低滲透性%瓦斯突齣%新型封孔材料%大直徑瓦斯抽放
저삼투성%와사돌출%신형봉공재료%대직경와사추방
low permeability%gas outburst%new sealing material%of large diameter gas drainage
针对过去钻孔法抽采距离短、孔径小、抽采效果差以及结合现场地质条件和瓦斯突出情况，研究和分析了新型封孔材料的原理和效果，提出了大直径瓦斯抽放技术。通过对柏林煤矿N2492工作面Φ120mm大直径和N2452、N2472工作施工的Φ75mm钻孔瓦斯抽放效果对比分析，得出新型瓦斯抽放技术能够提高单产，发展机械化，具有很好的经济和社会价值，具有进一步推广的意义。
針對過去鑽孔法抽採距離短、孔徑小、抽採效果差以及結閤現場地質條件和瓦斯突齣情況，研究和分析瞭新型封孔材料的原理和效果，提齣瞭大直徑瓦斯抽放技術。通過對柏林煤礦N2492工作麵Φ120mm大直徑和N2452、N2472工作施工的Φ75mm鑽孔瓦斯抽放效果對比分析，得齣新型瓦斯抽放技術能夠提高單產，髮展機械化，具有很好的經濟和社會價值，具有進一步推廣的意義。
침대과거찬공법추채거리단、공경소、추채효과차이급결합현장지질조건화와사돌출정황，연구화분석료신형봉공재료적원리화효과，제출료대직경와사추방기술。통과대백림매광N2492공작면Φ120mm대직경화N2452、N2472공작시공적Φ75mm찬공와사추방효과대비분석，득출신형와사추방기술능구제고단산，발전궤계화，구유흔호적경제화사회개치，구유진일보추엄적의의。
In the past, the hole drilling method has the short extraction distance, small aperture, and poor drainage effect, and combined with the geological conditions and the gas outburst state, studied and analyzed the principle and effect of new sealing material, and put forward the large diameter gas drainage technology. By drilling the 120mm diameter bore in N2492 working face and the 75mm diameter bore in N2452, N2472 working face of Berlin coal mine, Contrasted the gas drainage effect, the results showed that the new gas drainage technology can improve the yield, the development of mechanization, and had a good economic and social value, and a further promotion of signiifcance.
