复杂地质条件下高瓦斯矿井巷道施工防瓦斯异常涌出技术  

Technology for Preventing Gas from Abnormal Emission in High Gas Mine Roadway Construction under Complicated Geological Conditions

作　　者：张磊 ZHANG Lei(The Tenth Engineering Office of ChinaCoal First Construction Co.,Ltd.,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22期105-107,共3页Value Engineering

摘　　要：小回沟煤矿属高瓦斯矿井,井下地质条件复杂,根据地质资料显示,井下大量存在破碎带、断层、褶曲、陷落柱等复杂地质构造,瓦斯异常涌出可能发生,容易造成局部瓦斯超限,构成施工安全的重大隐患,为实现安全生产,采用超前钻探、短抽短掘、迈步长抽、钻孔增透、控制煤层截割速度等措施进行研究与实践,降低煤层残余瓦斯含量及掘进过程中的瓦斯涌出量,消除煤与瓦斯涌出、瓦斯超限危险。Xiaohuigou Coal Mine is a high gas mine with complex underground geological conditions.According to geological data,there are a large number of complex geological structures such as broken zones,faults,folds,and collapsed columns.It constitutes a major hidden danger to construction safety.In order to realize safe production,research and practice measures such as advanced drilling,short excavation,short excavation,long stepping,penetration enhancement,and control of coal seam cutting speed are adopted to reduce residual gas content and coal seam.The amount of gas emission during the tunneling process eliminates the danger of coal and gas emission and gas overrun.

关 键 词：高瓦斯 复杂地质 瓦斯异常涌出 

分 类 号：TD262[矿业工程—矿井建设]