煤系地层隧道施工面临瓦斯燃烧、瓦斯爆炸等重大风险源,是隧道施工中重大难点之一。依托赤水至望谟高速公路仁怀至赤水段莫洛隧道煤系地层隧道工程,阐述了莫洛隧道煤系地层瓦斯揭煤施工的基本原则、揭煤防突出施工的流程、步骤、揭煤防突措施及与检验效果,探讨了公路隧道瓦斯防治技术措施,确保了高风险瓦斯隧道施工安全。 Coal-bearing strata tunnel construction faces gas burning, gas explosion and other major risk sources, is one of the major difficulties in the construction of the tunnel. Relying on Chishui to Wangmo Expressway Renhuai Chishui section of the Moro Tunnel coal-bearing stratigraphic tunnel project, described the Moro Tunnel coal seam stratigraphy coal uncovering the basic principles of construction, uncovering prevention of outstanding construction processes, steps, Sudden measures and test results to explore the technical measures for gas prevention and control of highway tunnels and ensure the construction safety of high-risk gas tunnels.