铁道标准设计2017，Vol.61Issue(7)：136-140,5.DOI:10.13238/j.issn.1004-2954.2017.07.030
寒区隧道衬砌结构可靠性分析
Reliability Analysis of Tunnel Lining Structures in Cold Region
摘要
Abstract
In order to ensure the reliability of tunnel lining structures in cold region during the operational phase, PDS ( probability design) module and Monte Carlo Lad in super cube sampling method in ANSYS are employed to study the main factors affecting the reliability of the lining structure and the reliability index based on the Kunlun Mountains tunnel project and with a view to the influence of frost heaving force, surrounding rock pressure and the weight of the structure stress on surrounding rock lining structure. The results show that based on ANSYS numerical simulation, the most unfavorable position of lining structure caused by the frozen expansion is identified through the analysis of frozen surrounding rock temperature field and stress field coupled results; with probability theory and mathematical statistics, the reliability of the most disadvan-tageous position of the lining structure is analyzed in perspective of qualitative and quantitative, and the reliability index of lining structure is obtained;Latin hypercube sampling of the Monte Carlo method improves the accuracy of sampling probability, and the analysis of the sensitivity of the probability design and the scatter plot between design variables contribute to the determination of the reliability of tunnel lining structure of main control factors. And take measures against controllable factors and then to take measures to improve the reliability of tunnel lining structure.关键词
寒区隧道/冻胀力/衬砌结构/可靠性Key words
Tunnel in cold region/Frost force/Lining structure/Reliability分类
交通工程引用本文复制引用
黄华南,吴亚平,刘运明,孙建忠,魏明强..寒区隧道衬砌结构可靠性分析[J].铁道标准设计,2017,61(7):136-140,5.基金项目
中国铁路总公司科技研究开发计划课题(2015G005-C) （2015G005-C）
国家科技支撑计划(2014BAG05B05) （2014BAG05B05）
青海省交通建设科技项目(512287) （512287）
