棚洞结构洞形优化计算分析  

Numerical analysis of the shed-tunnel structrue on the tunnel shape optimizing

作　　者：刘元雪[1] 谢锋[2] 蒋树屏[2] 周家伍[1] 陈忱[1] 

机构地区：[1]后勤工程学院建筑工程系,重庆400041 [2]重庆交通科研设计院,重庆400067

出　　处：《岩土力学》2007年第S1期490-492,共3页Rock and Soil Mechanics

基　　金：重庆市科委资助。

摘　　要：随着国民经济的发展和社会的进步,公路隧道环保型建设技术日益受到重视。以南京—淮安高速公路南京江北段老山公路隧道为依托,提出了一种环保型结构——新型棚洞。采用大型通用有限元软件ANSYS对5种不同棚洞结构型式进行了优化。从弯矩、轴力、剪力3个方面综合计算分析表明,全拱式棚洞是最优方案。More and more attention has been focused on the study of the construction technology of highway tunnel considering environmental protection with the development of national economy and social progress. Based on the actual conditions of Lao-shan highway tunnel in Nanjing City,A new environment protection structure,called shed-tunnel structure,is developed. Synthesizing numerical analysis of five different structure style is made from three aspects,that is the bending moment,axial and shearing force,by finite element method software ANSYS. Finally we conclude that the shed-tunnel in the entirely arc style is the optimizing one.

关 键 词：棚洞结构 环保 数值分析 优化 

分 类 号：U452.2[建筑科学—桥梁与隧道工程]