复杂地质条件下高寒山区超长公路隧道总体建设方案研究  

Study on the Overall Construction Program of Super Long Highway Tunnel in Alpine Mountain under the Complicated Geological Conditions

作　　者：孙祺华 孟芹[2] 李剑[3] SUN Qihua;MENG Qin;LI Jian(Guizhou Expressway Group Co.,Ltd.,Guiyang 550001 ,China;Guizhou Jiaotong College,Guiyang 550001,China;Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan 430071 ,China)

机构地区：[1]贵州高速公路集团有限公司,贵州贵阳550001 [2]贵州交通职业技术学院,贵州贵阳550001 [3]中国科学院武汉岩土力学研究所,湖北武汉430071

出　　处：《安全与环境工程》2019年第3期1-8,共8页Safety and Environmental Engineering

基　　金：湖北省交通运输厅科技项目(2016-600-1-1)

摘　　要：天山隧道为我国最长的高寒山区公路隧道,其地质条件极其复杂,且国内缺少建设此类隧道的经验。针对该隧道的线位方案、断面布置、洞口位置和路面结构型式四个方面,通过文献调研、理论分析,开展了全面、系统的对比研究工作,确定了安全、经济、合理的总体建设方案,即:选取K线方案作为隧道越岭线路方案,其纵坡采取0.9%/16 800/2 810.87与-0.5%/4 860/2 937.77的组合;采用两主洞加服务隧道的断面布置方案;选取合理的隧道洞口位置,并针对洞口出现的工程地质问题,提出了相应的防治措施;对比和分析了沥青路面与水泥路面的优缺点,并建议采用水泥路面作为隧道路面结构型式。该总体建设方案对高寒山区类似超长公路隧道的快速施工、运营管理、建设工期控制等具有重要的指导意义。Tianshan mountain tunnel is the longest alpine mountain tunnel in China,its geological conditions is extremely complex,and there is lack of experience in the construction of such tunnels.For the four aspects of the tunnel,such as the line position scheme,the cross section layout,the hole location,the pavement structure,the comprehensive and systematic comparative studies are carried out by literature research and theoretical analysis.And safe,economical and reasonable overall construction program is proposed.The K-line programs is selected as tunnel crossing route plan,and the longitudinal slope take a combination of 0.9%/16 800/2 810.87 and-0.5%/4 860/2 937.77.The section layout scheme with two main hole plus service tunnel is adopted.The reasonable hole positions are selected,and corresponding control measures are put forward for the emergence of engineering geological problems around the holes.The advantages and disadvantages of asphalt pavement and cement pavement are compared and analyzed,and the cement pavement is proposed as a type of tunnel pavement.The overall construction program proposed in this paper has an important guiding significance for realizing rapid construction,operation management and construction period control of similar super-long highway tunnels in alpine regions.

关 键 词：超长公路隧道 复杂地质条件 高海拔 高寒山区 建设方案 天山隧道 

分 类 号：X141[环境科学与工程—环境科学] U452[建筑科学—桥梁与隧道工程]