高瓦斯煤层底抽+冲孔协同石门揭煤技术  

Collaborative Technology of Bottom Drainage+Punching Uncovering Coal at Crossheading in High Gas Coal Seam

作　　者：梁银权 

机构地区：[1]永贵能源开发有限责任公司新田煤矿,贵州黔西551500

出　　处：《煤炭技术》2017年第9期69-71,共3页Coal Technology

摘　　要：针对贵州矿区新田煤矿瓦斯治理存在的一些问题,如抽采钻孔浓度低、流量衰减快,抽采达标时间长,不能有效解决高效抽采瓦斯,直接造成矿井瓦斯抽采率低下,"抽、采、掘"比例失衡,通过采用底抽+冲孔协同石门揭煤技术,增大了煤层渗透率,扩大了钻孔抽采有效影响范围,提高了煤层瓦斯抽采效率,缩短了石门揭煤时间,缓解了新田煤矿抽、采、掘接替紧张局面。In view of some problems of gas control in the mining area of Guizhou Xintian coal mine,for example, extraction hole concentration is low,flow attenuation fast, extraction from standard time ,cannot effectively solve the problem of efficient extraction from the gas, directly result in mine gas extraction rate is low, ＂drainage, mining, digging＂ imbalance, by adopting the techratogy of bottom drainage ＋ punching uncovering coal at crossheading together,increase the permeability of coal seam, expanding the scope of the borehole extraction effective influence,improve the efficiency of coal seam gas extraction, shortening the time of uncovering coal at crossheading, relaxing gas drainage, dig to succeed in a tense situation.

关 键 词：快速揭煤 水力冲孔 石门揭煤 

分 类 号：TD713[矿业工程—矿井通风与安全]