基于层次分析法的超大隧道断面多准则优化分析  

Multi Criteria Optimization Analysis of Super Large Tunnel Section Based on Analytic Hierarchy Process

作　　者：李凌志 周骏 滕鸣翰 田伟 郑国平[3] LI Lingzhi;ZHOU Jun;TENG Minghan;TIAN Wei;ZHENG Guoping(Wenzhou JLW Expressway Eastern Extension Project Co.,Ltd.,Wenzhou 325019,China;Zhejiang Provincial Institute of Communications Co.,Ltd.,Hangzhou 310030,China;School of Civil Engineering,Zhejiang University of Technology,Hangzhou 310014,China)

机构地区：[1]温州金丽温高速公路东延线有限公司,温州325019 [2]浙江数智交院科技股份有限公司,杭州310030 [3]浙江工业大学土木工程学院,杭州310014

出　　处：《交通科技》2022年第4期119-124,共6页Transportation Science & Technology

基　　金：浙江省交通运输厅科研计划项目(项目编号:2021-GCKY-04)资助。

摘　　要：四车道超大断面公路隧道的几何参数会影响工程造价和结构稳定,为了合理拟定隧道断面尺寸,以温州大罗山隧道为依托,在0.4~0.5区间内拟定了5个不同矢跨比的断面方案,并综合考虑断面面积、衬砌周长、水平收敛、拱顶下沉、拱顶偏心距5个因素作为准则层,采用荷载-结构法对不同矢跨比的大断面隧道进行数值分析,并采用层次分析法对分析结果进行多准则优化分析。结果表明,矢跨比为0.43的断面为适合依托工程的最佳断面。The geometric parameters of four-lane super large section highway tunnel will affect the project cost and structural stability.To reasonably formulate the tunnel section size,taking Daluoshan tunnel in Wenzhou as a typical case,five section schemes with different rise-span ratio are proposed in the interval of 0.4 to 0.5.Five factors such as section area,lining perimeter,horizontal convergence,vault subsidence and vault eccentricity are comprehensively considered as the criterion layer.The load-structure model is adopted to analyze the large section tunnel,and the analytic hierarchy process method is used to optimize the analysis results.The results show that the section with rise-span ratio of 0.43 is the best for the background tunnel.

关 键 词：公路隧道 断面优化 层次分析法 荷载-结构法 

分 类 号：U452.2[建筑科学—桥梁与隧道工程]