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针对潘一东新建矿井-725～848 m西翼胶带机上山巷道揭煤情况:所要揭开13-1、12煤层组的瓦斯压力高达4.9 MPa,煤质松软,穿越石门、煤门距离长,并且需从主井单独布置1个下山通风系统,揭煤难度大等问题,提出“异地揭煤法”揭开13-1、12煤层组;根据巷道掘进情况,-805 m联络巷与胶带机上山在煤层组内相遇,需共同揭开煤层组,根据揭煤难易程度,首先在“异地”-805 m联络巷揭开13-1煤,然后沿着煤层反方向分别向上、向下揭开煤层组完成西翼胶带机上山的揭煤工作。在胶带机上山掘进至13-1煤层顶板7 m时,专门布置1条64 m措施巷进行揭煤区域瓦斯治理,又经过严格施工和区域、局部效果检验,采用远距离放炮揭开了煤层组。“异地揭煤法”揭煤较传统揭煤方案缩短了1/4时间,取得了良好的经济效益和安全效益。
Aiming at Pan Yidong new coal mine -725 ~ 848 m West Wing tape conveyor tunnel roadway uncovering coal: 13-1, 12 coal seam group to open the gas pressure up to 4.9 MPa, soft coal, through the Shimen, coal distance, and From the main shaft alone arranged a downhill ventilation system, uncovering the difficulty of coal and other issues, proposed “off-site Uncovering Law ” opened 13-1,12 seam group; according to roadway excavation, -805m contact Lane and tape machine According to the degree of difficulty in exposing coal, first open the coal seam 13-1 in the contact lane of 805 m in different places, and then upwardly and downwardly along the direction opposite to the coal seam Under the coal group to complete the West Wing tape machine up the mountain uncovering coal work. When the tape machine goes tunneling up to 7 m of coal seam roof 13-1, a 64-m measure lane is specially arranged to carry out gas control in the uncovering area. After rigorous construction and regional and local effect inspection, the coal seam group is opened with long-distance blasting . “Off-site Unlawful Exposing Law ” Unverified coal is one-fourth shorter than the traditional uncovering of coal and has achieved good economic and security benefits.