隧道衬砌碳化可靠度分析和维修方案比选  

Analysis of Reliability for Concrete Carbonation for Tunnel Lining and Its Maintenance Scheme Selection

作　　者：唐协[1] 陈华群[2] 

机构地区：[1]西南交通大学土木工程学院,四川成都610031 [2]西南交通大学交通运输学院,四川成都610031

出　　处：《西华大学学报（自然科学版）》2007年第2期64-66,共3页Journal of Xihua University:Natural Science Edition

摘　　要：基于混凝土碳化随机模型和钢筋锈蚀模型,利用蒙特卡洛随机有限元的方法计算了既有隧道衬砌可靠度和基准期内的失效概率;结合维修需求预测模型,通过维修成本效益的评估,对隧道衬砌维修方案进行了比选;通过一连拱隧道应用,计算其衬砌碳化可靠度,提出了经济合理的维修方案,验证该方法的可行性。Based on concrete carbonation model and rust corrosion model,the reliability and the time dependent failure probability of tunnel lining are analyzed by Monte Carlo stochastic finite element method.In combination with repair demand model,the cost and benefit are evaluated,and effective maintenance scheme for tunnel lining is chosen.The reliability of concrete carbonation is calculated and economic reasonable maintenance plan is selected by the analysis and predictive method for a through double arch tunnel,which verifies the feasibility of the method.

关 键 词：隧道衬砌 混凝土碳化 钢筋锈蚀 维修需求模型 蒙特卡洛法 

分 类 号：TU375[建筑科学—结构工程]