高速公路隧道内火灾区域损伤检测分析——以甘肃某高速公路隧道为例  

Analysis of fire area damage detection in highway tunnels--Take a Highway Tunnel in Gansu Province as an Example

作　　者：王雄 金彦军 蒋军强 WANG Xiong;JIN Yanjun;JIANG Junqiang(Gansu Provincial Transportation Planning,Survey and Design Institute Co.,Ltd.,Lanzhou 730030;Gansu Changlong Highway Maintenance Technology Research Institute Co.,Ltd.,Lanzhou 730030)

机构地区：[1]甘肃省交通规划勘察设计院股份有限公司,甘肃兰州730030 [2]甘肃畅陇公路养护技术研究院有限公司,甘肃兰州730030

出　　处：《中国建材科技》2025年第1期92-96,共5页China Building Materials Science & Technology

基　　金：甘肃省科技重大专项-企业创新联合体项目(编号:22ZD6GA010)。

摘　　要：针对甘肃某高速公路隧道车辆火灾事故,分析火灾对隧道结构的损伤现状,明确检测项目的技术依据与规范,包括衬砌混凝土强度、碳化深度、净空断面尺寸等。结果显示,火灾对隧道衬砌表层和路面造成显著损害,内部结构仍具备承载能力。依据检测结果进行技术评级,火灾核心区段衬砌混凝土评级为c级,需重点加固。在修复技术上,结合火灾区域受损情况,提出受损衬砌和路面的加固方法、排水系统和标识优化方案,为隧道结构的长期安全提供保障。In view of the vehicle fire accident in a highway tunnel in Gansu,the current situation of fire damage to the tunnel structure is analyzed,and the technical basis and specifications of each detection item are clarified.The test items include the strength of the lining concrete,the carbonization depth,the size of the clearance section,etc.The results show that the fire caused significant damage to the surface layer and road surface of the tunnel lining,and the internal structure still has the bearing capacity.According to the test results,the technical rating is carried out,and the lining concrete in the core section of the fire is rated as grade C,which needed to be reinforced.In terms of repair technology,combined with the specific damage of the fire area,the reinforcement method of the damaged lining and pavement,the optimization scheme of drainage system and identification are proposed,so as to provide guarantee for the long-term safety of the tunnel structure.

关 键 词：隧道火灾 衬砌混凝土 损伤检测 结构加固 火灾评估 

分 类 号：U457[建筑科学—桥梁与隧道工程]