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论述了华蓥山瓦斯隧道东口工区右线采用全断面 (开挖 )整体揭煤 ,内燃机械无轨出碴 ,安全揭穿和通过K1突出危险煤层的施工技术。在国内尚属首次
The construction technology of whole section (excavation) whole uncovering coal, internal combustion mechanical trackless ballast, safe exposing and highlighting dangerous coal seam by K1 is discussed on the right line of Huazhan Mountain gas tunnel east exit work area. For the first time in China