高瓦斯突出矿井立井筒多煤层防突揭煤施工技术  

Construction Technology for Preventing Coal Outburst in Multiple Seams in Vertical Shaft of High Gas Outburst Mine

作　　者：张艳涛 ZHANG Yan-tao(CCFCC Tenth Engineering Office,Handan 056003,China)

机构地区：[1]中煤第一建设有限公司第十工程处,邯郸056003

出　　处：《价值工程》2021年第21期106-108,共3页Value Engineering

摘　　要：煤与瓦斯突出矿井建井期间,立井筒施工揭煤施工时,通过地面直井水砂压裂防突技术,有效改善压裂影响范围内应力集中状态,释放瓦斯压力,降低煤层突出危险性,通过地面预抽和工作面钻孔抽放降低煤层瓦斯压力和瓦斯含量,消除煤层突出危险性,保证井筒安全顺利揭煤。During the construction of coal and gas outburst mines,during vertical shaft construction and uncovering coal construction,the ground vertical well water-sand fracturing anti-outburst technology is used to effectively improve the stress concentration state within the fracturing range,release gas pressure,and reduce the risk of coal seam outburst,reduce coal seam gas pressure and gas content through ground pre-drainage and working face drilling and drainage,eliminate the danger of coal seam outburst,and ensure the safe and smooth uncovering of coal in the shaft.

关 键 词：立井井筒 钻井压裂 瓦斯抽放 揭煤 

分 类 号：TD352[矿业工程—矿井建设]