高速铁路长短隧道方案比选  

Comparison and Selection of Long or Short Tunnel Scheme for High Speed Railway

作　　者：刘俊 张宝文 LIU Jun;ZHANG Baowen(China Railway Design Corporation,Tianjin 300308,China)

机构地区：[1]中国铁路设计集团有限公司,天津300308

出　　处：《铁道建筑》2024年第5期104-107,共4页Railway Engineering

基　　金：中国铁路设计集团有限公司科技开发项目(2020YY240102)。

摘　　要：铁路设计在确定线路走向及工点设计时要考虑众多因素。选取襄荆(襄阳—荆门)高速铁路通过高陡边坡危岩落石典型段落,从线路方案、工程地质、投资概算、环保水保等七个方面对深路堑结合短隧道、长隧道两种方案进行比选,得出在风险可控条件下长隧道方案更优。采用层次分析法(Analytic Hierarchy Process,AHP),得到线路、路基、桥梁、隧道、地质、投资概算及环保水保7个评价指标的权重,并通过评价指标判断矩阵得出长隧道方案综合得分高于短隧道方案,与工程比选结果一致。Railway design has to consider many factors when determining the route direction and work site design.Facing the safety problems of dangerous rockfalls in the subgrade section,the typical subgrade tunnel section of Xiangyang-Jingmen high speed railway was selected to make scheme comparison and selection of deep graben combined with short tunnel or long tunnel through the dangerous rockfalls in high and steep slopes in seven aspects,such as route plans,engineering geology,investment estimates,environmental and water conservation,etc.Then it was concluded that the long tunnel option is superior to the short tunnel option under risk controlled conditions.At the same time,based on the AHP model,the weighting of the seven evaluation indexes which contain route,roadbed,bridge,tunnel,geology,investment estimates,environmental and water conservation for the scheme comparison were determined.Through the construction of the fuzzy evaluation judgment matrix,it was concluded that the comprehensive score of the long tunnel scheme was higher than that of the short tunnel scheme,which verified the consistency of the scheme with that of the engineering recommendation.

关 键 词：高速铁路 铁路隧道 方案比选 工点设计 层次分析法 综合评价 

分 类 号：U459.8[建筑科学—桥梁与隧道工程] U238[交通运输工程—道路与铁道工程]