沪渝蓉高速铁路(宜涪段)马鹿箐隧道选线研究  

A Study on Route Selection of Maluqing Tunnel of Shanghai-Chongqing-Chengdu High-speed Railway (Yichang-Fuling Section)

作　　者：尹航[1] YIN Hang(China Railway Eryuan Engineering Group Co.,Ltd,Chengdu 610031,China)

机构地区：[1]中铁二院工程集团有限责任公司,成都610031

出　　处：《高速铁路技术》2023年第1期106-110,共5页High Speed Railway Technology

摘　　要：随着国家铁路路网逐步向复杂艰险山区拓展,铁路选线工作也面临因地形地貌复杂、地质灾害频发、工程条件艰难、施工及运营存在较高风险等特征产生的新困难。在充分吸收成昆、宜万等既有山区铁路建设经验和“减灾选线新理念”的基础上,文章以沪渝蓉高速铁路(宜涪段)地质情况复杂多变的马鹿箐隧道为背景,开展了隧道穿越岩溶地质发育地段的线路方案研究,论证了新马鹿箐隧道的线路方案的合理性,提出了隧道穿越岩溶地区的选线准则。研究成果可为类似岩溶地区隧道选线提供借鉴。With the gradual expansion of the national railway network to challenging mountain areas,the railway route selection is also faced with new difficulties caused by complex topographical and geomorphological conditions,frequent geological disasters,difficult work conditions,and high risks in construction and operation.On the basis of fully learning from the construction experience of existing mountainous railways such as Chengdu-Kunming Railway and YichangWanzhou Railway and the“New Concept of Disaster Reduction and Route Selection”,this paper studied the alignment scheme of the tunnel crossing the karst geologically developed section,and took the Maluqing Tunnel with complex and volatile geological conditions of Shanghai-Chongqing-Chengdu High-speed Railway(Yichang-Fuling Section)as a case for study,to demonstrate the rationality of the alignment scheme of the new Maluqing Tunnel,and put forward the route selection criteria for tunnels crossing karst area.The results can provide a reference for the route selection of tunnels in similar karst areas.

关 键 词：高速铁路 马鹿箐隧道 岩溶 隧道选线 

分 类 号：U452.12[建筑科学—桥梁与隧道工程]