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张集煤矿14138工作面运输顺槽8#煤层施工,跨跃-550 m上下2个标高段的煤层段,-550 m标高及以下按突出威胁区管理,同时运输顺槽掘进中必须穿过200 m左右的高瓦斯富集块段。为解决这一问题,张集煤矿运用了综合治理方法,得以安全地通过了瓦斯富集块段,促使工作面顺利贯通,在掘进期间未发生瓦斯超限现象;同时为张集煤矿乃至淮南矿区的同煤层类似掘进难题提供了基础方法和依据。
Zhangji Coal Mine 14138 Face Transportation Road 8 # seam construction, spanning-550 m above and below the two elevation section of the coal seam, -550 m elevation and below the prominent threat zone management, along the transport along the trench must pass through 200 m high gas enrichment block around the block. In order to solve this problem, Zhangji Coal Mine used the comprehensive treatment method to be able to safely pass the gas enrichment block and promote the smooth running of the coal face. During the excavation, no gas overrun phenomenon occurred. At the same time, Zhangji Coal Mine and even Huainan Mining Area Similar to the coal seam with the tunneling provides the basis for difficult problems and basis.