复杂地质突出煤层瓦斯综合治理技术研究  

Study on comprehensive gas management technology for complex geological prominent coal seams

作　　者：刁厚珍 Diao Houzhen(Dashucun Mine,Jizhong Energy Fengfeng Group,Handan 056000,China)

机构地区：[1]冀中能源峰峰集团大淑村矿,河北邯郸056000

出　　处：《煤炭与化工》2021年第9期98-100,共3页Coal and Chemical Industry

摘　　要：受地质构造和煤层厚度变化影响,针对冀中能源峰峰集团大淑村矿4号煤层不能实现全面卸压开采,留下工作面边界等多种形式的煤柱的问题,通过研究2号煤层在未完全开采保护层条件下,采取配合穿层预抽及顺层预抽回采区域煤层瓦斯等区域防突措施,对整个回采工作面进行消突工作。在工作面回采期间,采用顺层钻孔和高位钻孔等措施治理回采期间瓦斯,结果表明,该措施使上隅角瓦斯浓度保持在0.2%~0.3%,回风瓦斯浓度保持在0.3%~0.4%,并趋于稳定,保证了工作面安全高效的生产。Due to the influence of geological structure and coal seam thickness variation,the No.4 coal seam of Dashucun Mine of Jizhong Energy Fengfeng Group cannot be fully mined,leaving various forms of coal pillars such as working face boundary,etc.By studying the regional anti-protrusion measures such as pre-pumping through the seam and goaf,the No.2 coal seam was not fully mined to protect the seam,the whole retrieval work was carried out to eliminate the protrusion.During the working face recovery period,the use of the following measures was adopted The results showed that the measure kept the gas concentration in the upper corner at 0.2%~0.3%and the gas concentration in the return wind at 0.3%~0.4%,and tended to be stable,which ensured the safe and efficient mining.

关 键 词：区域防突措施 开采保护层 预抽煤层瓦斯 地质构造 

分 类 号：TD714[矿业工程—矿井通风与安全]