当前铁路隧道施工亟待解决的若干技术问题  

Technique Problems Need to be Solved Urgently in Current Railway Tunnel Construction

作　　者：马辉[1,2] 刘仁智 陈寿根[1] 高明忠[3] 

机构地区：[1]西南交通大学,成都610031 [2]中铁二局集团公司,成都610032 [3]四川大学水利水电学院,成都610065

出　　处：《现代隧道技术》2011年第5期1-6,共6页Modern Tunnelling Technology

基　　金：中国中铁二局集团科技开发项目(200901);成果发明专利申请号或专利号:201110057368.8;201110057611.6;201120061795.9;201110064803.X;国家版权局计算机软件著作权登记证书(证书号:软著登字第0269600号)

摘　　要：高速铁路隧道工程建设标准高,施工难度大,安全风险高,施工管理要求严格。文章以贵广铁路隧道工程为实例,结合当前国内隧道施工技术现状和贵广铁路隧道创新技术的现场实践,研究分析了制约隧道施工安全和施工效率的突出技术问题,取得了一系列研究成果:①基于精细爆破技术的微台阶开挖工艺可有效解决IV、V级围岩隧道开挖进度与工序安全距离之间的矛盾;②得益于通风技术和空气净化技术的进步,无轨运输方式可以适应于长大隧道的施工;③隧道仰拱快速施工设备和隧道沟槽移动模架的开发应用填补了这一领域的空白;④信息化施工是未来隧道施工技术发展的大趋势。Funneling in high-speed railways is characterized by high construction standards, great constrnction difficulties, high safety risks and strict construction management requirements. Taking the Guiguang high-speed railway as an example, this paper analyzes several key problems that restrict construction efficiency and safety. Based on the current technical status of domestic railway tunnel construction, some conclusions were drawn： 1） Excavation with the micro bench method utilizing precise blasting technology can solve the contradiction between excavation advancement and keeping a safe distance between different processes for rocks class IV and V： 2） Trackless transportation, which benefits fl：om the progress of ventilation technology and air purification technology. is applicable to the construction of long tunnels with large sections; 3） Developing and applying fast construction equipment for tunnel invert construction and movable formworks for the construction of water ditches and cable grooves filled a gap in this field; and 4） lnfbrmation-oriented construction is the trend of tunnel construction technology development in the future.

关 键 词：高速铁路 隧道施工 技术创新 控制爆破 微台阶开挖 仰拱快速施工 

分 类 号：U455.41[建筑科学—桥梁与隧道工程]