城市道路地下病害识别及塌陷风险评价研究  

Research on Identification of Subsurface Defects of Urban Roads and Collapse Risk Assessment

作　　者：田岗 张海军 王成亮 杜衍庆 师海 TIAN Gang;ZHANG Haijun;WANG Chengliang;DU Yanqing;SHI Hai(C+E Center for Engineering Research Test and Appraisal Co.,Ltd.,Beijing 100142,China;China-Road Transportation Verification&Inspection Hi-Tech Co.,Ltd.,Beijing 100088,China;Tianjin Municipal Engineering Design&Research Institute Co.,Ltd.,Tianjin 300051,China;School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]中电投工程研究检测评定中心有限公司,北京市100142 [2]中路高科交通检测检验认证有限公司,北京市100088 [3]天津市政工程设计研究总院有限公司,天津市300051 [4]北京交通大学土木建筑工程学院,北京市100044

出　　处：《中外公路》2025年第2期46-54,共9页Journal of China & Foreign Highway

基　　金：天津市交通运输科技发展计划项目(编号:2019B25);中国电子工程设计院科研项目(编号:KJ2230)。

摘　　要：该文以探地雷达技术为基础,通过分析城市道路地下典型病害的形成特点、电性特征和形态差异,总结分析不同道路地下病害的雷达图谱特征,这不仅有利于地下病害的精确辨识,还为后续道路塌陷评价工作的开展提供了评估依据。同时,该文通过将地下病害等因素融入道路塌陷风险评价工作中,建立了用于道路塌陷风险评价的“5级”评估模型,形成了道路地下病害探测与塌陷风险评价的一体化研究机制,并以北京市某道路工程为例,运用梯形隶属度函数,对影响道路塌陷的各指标隶属度进行赋值,并通过模糊运算得出实例道路病害体1^(#)、2^(#)、3^(#)和4^(#)发生塌陷风险的等级分别为Ⅱ级(较低风险)、Ⅲ级(一般风险)、Ⅲ级(一般风险)和Ⅴ级(高风险)。研究结果表明:对于处于较低风险的病害体1^(#),应加强日常巡视工作;对于处于一般风险的病害体2^(#)、3^(#),应加强定期检测;对于处于高风险的病害体4^(#),应及时进行注浆加固或开挖回填处理。Based on ground-penetrating radar(GPR)technology,this paper examined the formation characteristics,electrical properties,and morphological variations of common subsurface defects of urban roads.The paper summarized the radar spectrum characteristics of various subsurface defects,aiding in precise identification and providing a basis for subsequent assessment of road collapse risks.In addition,the paper integrated various factors,including subsurface defects,into the assessment of road collapse risk and established a“five-level”assessment model.This led to an integrated research approach for detecting subsurface defects and assessing collapse risks.A road project in Beijing was used as a case study,and a trapezoidal membership function was applied to assign values to collapse-related indicators.Fuzzy calculations were employed to determine the collapse risk levels for subsurface defects 1^(#),2^(#),3^(#),and 4^(#),classified as LevelⅡ(low risk),LevelⅢ(medium risk),LevelⅢ(medium risk),and LevelⅤ(high risk),respectively.The results indicate that low-risk defect 1^(#)requires enhanced routine inspections;medium-risk defects 2^(#)and 3^(#)necessitate regular inspections;high-risk defect 4^(#)demands immediate grouting reinforcement or excavation and backfilling.

关 键 词：探地雷达 雷达图谱 地下病害 道路塌陷 风险评价 

分 类 号：U416[交通运输工程—道路与铁道工程]