松散厚煤层坚井“四步”揭煤法的实践  

The Practice of Shaft "Four Step" Uncovering Coal Method in Loose Thick Coal Seam

作　　者：李守振[1] 

机构地区：[1]郑州煤炭工业(集团)有限责任公司振兴二矿,河南郑州450007

出　　处：《煤矿安全》2012年第6期108-110,共3页Safety in Coal Mines

摘　　要：针对郑煤集团超化煤矿31风井煤层瓦斯赋存状况,制定实施了"四步"法揭穿松散厚煤层管控流程,依据"四步"揭煤法确定的各环节管控内容考核验收每步工作质量,"四步"法安全揭穿了31风井厚13 m松散煤层,无瓦斯超限及片帮流煤事故。Aiming at the coal seam gas occurrence conditions in No.31 air shaft of Chaohua coal mine,the control process of implementing ＂four step＂ method to expose loose thick coal seam is drew up.According to ＂four-step＂ uncovering coal method to determine various aspects of management and control content,each step of the work quality is examined and tested.The ＂four step＂ method is safe to expose loose thick coal seam of 13 m in No.31 air shaft,and there is no gas overrun and side falling accident.

关 键 词：松散厚煤层 竖井揭煤 瓦斯防治 突出防治 流程控制 

分 类 号：TD713.3[矿业工程—矿井通风与安全]