季冻区隧道冻害风险等级划分及施工处治措施  

Risk Classification and Construction Treatment Measures of Tunnel in Seasonal Freezing Area

作　　者：张炳涛[1] 张东淼 李伟 叶飞[2] 王思宇 ZHANG Bingtao;ZHANG Dongmiao;LI Wei;YE Fei;WANG Siyu(Jilin Highway Management Bureau,Changchun,Jilin130021,China;School of Highway,Chang’an University,Xi’an,Shaanxi710064,China)

机构地区：[1]吉林省公路管理局,吉林长春130021 [2]长安大学公路学院,陕西西安710064

出　　处：《施工技术》2021年第12期112-115,共4页Construction Technology

基　　金：吉林省交通运输科技项目:季冻区运营普通公路隧道养护及病害整治关键性技术研究(2018-1-11)。

摘　　要：为提高季冻区公路隧道冻害处治效果,减少冻害施工处治过程中的盲目性,在借鉴已有研究成果的基础上,采用模糊层次分析法建立季冻区隧道冻害风险等级评价体系,给出冻害风险等级和评价标准。并从隧道保温、排水措施方面考虑,提出不同冻害风险等级下隧道冻害施工处治措施。研究结果表明,温度条件和水文条件所占准则层权重最大,冻害处治应充分考虑渗漏水处治和隧道保温内容,提出的隧道冻害施工处治措施与冻害等级关系表可用于指导实际冻害施工处治决策。In order to improve the treatment effect of highway tunnel freezing damage in seasonal frozen area,and reduce the blindness in the process of construction treatment,based on the existing research results,the fuzzy analytic hierarchy process(FAHP)is used to establish the risk grade evaluation system of tunnel freezing damage in seasonal frozen area,and the freezing damage risk grade and evaluation standard are given.Considering the tunnel insulation and drainage measures,different freezing damage risk levels are proposed,under the condition of tunnel freezing damage treatment measures.The results show that temperature and hydrological conditions account for the largest weight of the criterion layer,and leakage treatment and tunnel insulation should be fully considered in the treatment of freezing damage.The table of relationship between the treatment measures of tunnel freezing damage construction and the freezing damage grade can be used to guide the actual decision-making of freezing damage treatment.

关 键 词：隧道 季冻区 冻害 等级划分 施工技术 

分 类 号：U45[建筑科学—桥梁与隧道工程]