中外公路2025，Vol.45Issue(2)：46-54,9.DOI:10.14048/j.issn.1671-2579.2025.02.005
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
摘要
Abstract
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),Level Ⅲ(medium risk),Level Ⅲ(medium risk),and Level Ⅴ(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Key words
GPR/radar spectrum/subsurface defect/road collapse/risk assessment分类
交通工程引用本文复制引用
田岗,张海军,王成亮,杜衍庆,师海..城市道路地下病害识别及塌陷风险评价研究[J].中外公路,2025,45(2):46-54,9.基金项目
天津市交通运输科技发展计划项目(编号:2019B25) （编号:2019B25）
中国电子工程设计院科研项目(编号:KJ2230) （编号:KJ2230）
