暴雨灾害后隧道病害检测及隧道健康状况综合评价  

Comprehensive evaluation of tunnel health status and tunnel disease detection after heavy rain disaster

作　　者：何维启 He Weiqi(Hunan Zhili science and technology Co.,Ltd,Changsha 410018,China)

机构地区：[1]湖南致力工程科技有限公司,长沙410018

出　　处：《青海交通科技》2022年第2期107-116,122,共11页Qinghai Transportation Science and Technology

基　　金：国家自然科学基金资助项目(41174061,41374120)。

摘　　要：隧道洞口病害主要是因为隧道进出口段边仰坡受洪水冲刷引起垮塌,封堵隧道影响车辆正常通行,严重时边坡的垮塌会冲击隧道结构引起衬砌开裂甚至洞口段失稳。本文采用多种检测方法对隧道质量病害进行了综合检测,从地质条件、水文条件、隧道结构等方面对隧道病害进行了综合的分析,确定隧道偏压、鼓楼坪逆断层处、暴雨地质灾害对隧道结构病害产生较大影响,另外隧道施工期塌方、衬砌厚度不足、仰拱下未施做初期支护等质量缺陷对病害也有一定影响,最后依据检测、监测成果,对具体病害提出了有针对性的处治建议。Tunnel entrance disease is mainly caused by the collapse of the side and front slopes at the entrance and exit of the tunnel caused by flood scouring.Blocking the tunnel will affect the normal traffic of vehicles.In serious cases,the collapse of the slope will impact the tunnel structure,causing lining cracking and even instability of the entrance section.In this paper,a variety of detection methods are used to comprehensively detect the tunnel quality diseases.The tunnel diseases are comprehensively analyzed from the aspects of geological conditions,hydrological conditions and tunnel structure.It is determined that the tunnel bias,guluoping reverse fault and rainstorm geological disasters have a great impact on the tunnel structure diseases.In addition,the quality defects such as collapse during tunnel construction,insufficient lining thickness and no initial support under overhead supply also have a certain impact on the diseases.Finally,according to the detection and monitoring results,targeted treatment suggestions are put forward for specific diseases.

关 键 词：隧道 病害检测 健康状况 综合评价 

分 类 号：U457.2[建筑科学—桥梁与隧道工程]