隧道衬砌结构分析及优化研究  

Analysis and Optimization of Tunnel Lining Structure

作　　者：孙萍[1] 谢渊 毛昆明[1] SUN Ping;XIE Yuan;MAO Kun-ming(Jinling Institute of Technology, Nanjing 211169, China)

机构地区：[1]金陵科技学院建筑工程学院

出　　处：《金陵科技学院学报》2019年第2期29-33,共5页Journal of Jinling Institute of Technology

基　　金：江苏省教育科学“十三五”规划课题(B-b/2018/01/39);金陵科技学院2017年校内教改研究课题

摘　　要：以某隧道工程为背景,通过对隧道衬砌结构的适应性进行分析研究,对三心圆和圆形截面隧道衬砌结构进行有限元模拟,结果表明圆形截面衬砌的等效应力值与三心圆截面衬砌比较接近,圆形截面衬砌的拱顶下沉和仰拱隆起值要大于三心圆截面衬砌。综合隧道开挖工程量和衬砌受力性能,三心圆截面是适应性较好的隧道衬砌结构。Taking a tunnel project as background, the adaptability of tunnel lining structure is analyzed and studied, and the finite element simulation of common three-center circular and circular cross-section tunnel lining structure is carried out.The results show that the equivalent stress value of circular cross-section lining is close to that of three-center circular cross-section lining, and the vault subsidence and inverted arch uplift value of circular cross-section lining are larger than that of three-center circular cross-section lining.Considering the quantity of earthwork and the mechanical properties of lining, the three-center circular section is a tunnel lining structure with good adaptability.

关 键 词：隧道衬砌 受力分析 有限元分析 结构优化 三心圆衬砌 

分 类 号：U451[建筑科学—桥梁与隧道工程]