大坂山隧道病害处治工程工艺设计与实证分析  

Rehabilitation project of the Dabanshan highland road tunnel

作　　者：刘海京[1] 郑佳艳[2] 程崇国[1] 黄伦海[1] 

机构地区：[1]重庆交通科研设计院交通部隧道建设与养护行业重点实验室,重庆400067 [2]重庆交通大学土木建筑学院,重庆400074

出　　处：《重庆大学学报（自然科学版）》2011年第12期138-143,150,共7页Journal of Chongqing University

基　　金：交通部应用基础研究项目(2007319740120);重庆市科技攻关项目(CSPC;2009AC6083)

摘　　要：在国道227线控制工程大坂山隧道病害检测基础上,综合考虑高寒隧道工程地质、水文、气候等自然特征和原隧道施工工艺、施工工法、运营养护等人为因素,分析了渗漏水、衬砌裂缝、低温冻融、混凝土材料劣化等病害演化过程,以及各种不良因素在高寒隧道病害演化发展过程中所起的作用。在病害成因分析的基础上,介绍了大坂山高寒隧道渗漏水、保温、衬砌加固等病害处治的基本原则、思路和具体措施,为后续类似高寒隧道和寒区隧道的病害处治提供经验和借鉴。The rehabilitation project of road tunnel in highland area and cold region is an important and worthy exploring research field.The development of the defects of crack in the liner,water leakage,structural deterioration and frost defects for Dabanshan road tunnel are studied.After an insight into the cause and development of tunnel defects,the water leakage and frost damage are considered as the root of defect,so restoration of drainage system and the reinstallation of cold prevention system are the focuses of the rehabilitation project.For consideration of safety,cover arch is installed for the tunnel structure enforcement as well.Results indicate measures in Dabanshan road tunnel rehabilitation project are effective for road tunnel of high altitude and tunnel in cold region.

关 键 词：大坂山隧道 高寒隧道 病害处治 

分 类 号：U457[建筑科学—桥梁与隧道工程]