煤与瓦斯突出隧道穿越采空区缓倾煤层揭煤防突关键技术研究  

Research on Key Techniques for Uncovering Coal and Preventing Outburst for Gently Inclined Coal Seams in Coal and Gas Outburst Tunnel Crossing Goaf

作　　者：曾妙林 ZENG Miao-lin(The Fourth Engineering Co.,Ltd.of China Railway 25th Bureau Group,Liuzhou 545007,China)

机构地区：[1]中铁二十五局集团第四工程有限公司,柳州545007

出　　处：《价值工程》2023年第8期91-93,共3页Value Engineering

摘　　要：我国高速公路对大断面煤与瓦斯突出隧道工程领域的研究起步较晚,这方面的工程应用研究很多借鉴煤矿、铁路瓦斯隧道等相关的工程技术。与煤矿井下石门揭煤相比,公路瓦斯隧道揭煤具有地质条件复杂、勘查程度低,揭煤断面大、释放能量高、动力响应复杂,防突难度大等多种特征,隧道施工时常有碰撞、敲打等容易产生火花,从而引发瓦斯燃烧、瓦斯爆炸和瓦斯窒息等事故,严重威胁隧道施工安全,本文重点研究煤与瓦斯突出隧道揭煤防突关键技术与控制要点,可为类似瓦斯隧道的安全施工提供参考。The research on large-section coal and gas outburst tunnel engineering of expressway in China started relatively late,and the engineering application research in this field has many references to relevant engineering technologies such as coal mine and railway gas tunnel.Compared with the coal mining under the coal mine,the coal mining in the highway gas tunnel has many characteristics,such as complex geological conditions,low degree of exploration,large coal mining section,high energy release,complex dynamic response,and great difficulty in outburst prevention.The tunnel construction is often prone to sparks such as collision and knocking,which leads to gas combustion,gas explosion,gas suffocation and other accidents,and seriously threatens the safety of tunnel construction.This paper focuses on the key technologies and control points of coal and gas outburst prevention in coal and gas outburst tunnels,which can provide reference for the safe construction of similar gas tunnels.

关 键 词：公路隧道 大断面 煤与瓦斯突出 揭煤防突 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]