基于gprMax正演分析的道路质量与病害探地雷达探测  

Ground Penetrating Radar Detection of Road Quality and Disease based on gprMax Forward Analysis

作　　者：丁文蔷 麻昌英 赵文学 闫玲玲 DING Wenqiang;MA Changying;ZHAO Wenxue;YAN Lingling(East China University of Technology,School of Geophysics and Measurement-Control Technology,330013,Nanchang,PRC;Engineering Research Center for Seismic Disaster Prevention and Engineering Geological Disaster Detection of Jiangxi Province,330013,Nanchang,PRC)

机构地区：[1]东华理工大学地球物理与测控技术学院,南昌330013 [2]江西省防震减灾与工程地质灾害探测工程研究中心,南昌330013

出　　处：《江西科学》2023年第6期1117-1123,共7页Jiangxi Science

基　　金：国家自然科学基金项目(41904097);江西省自然科学基金项目(20202BAB211011);江西省防震减灾与工程地质灾害探测工程研究中心开放基金资助项目(SDGD202104,SDGD202101);东华理工大学博士科研启动基金项目(DHBK2018068)。

摘　　要：随着社会经济的发展和城市化进程的加速,城市道路安全成为关注的焦点。利用探地雷达作为高效的物探方法,在城市大规模道路质量与病害探测中发挥作用。采用基于FDTD的数值模拟软件gprMax进行地球物理正演建模,模拟城市中常见道路异常体和病害的雷达响应。通过分析生成的B-scan雷达剖面图和可视化几何模型图,研究不同异常体和病害的雷达响应特征,以指导实际道路探地雷达的数据分析与解释。最后,结合南昌市的实际采集数据资料,对城市道路病害进行道路质量评价,并识别潜在的病害类型。结果表明,该方法在城市道路质量与病害探测中表现良好,为提高城市道路质量与病害探测提供了有效的方案。该研究对于应对日益增加的城市道路安全挑战具有重要意义。With the development of society and the acceleration of urbanization,urban road safety has become a focal point of attention.In this study,Ground Penetrating Radar(GPR)was utilized as an efficient geophysical method to investigate the detection of road quality and defects on a large scale in urban areas.A numerical simulation software,gprMax,based on the Finite-Difference Time-Domain(FDTD)method,was employed to simulate the electromagnetic wave propagation and perform geophysical forward modeling of common road anomalies and defects in urban environments.By analyzing the generated B-scan radar profiles and visualizing the geometric models,the radar re-sponse characteristics of different anomalies and defects were studied and analyzed,providing guid-ance for the data analysis and interpretation of practical road GPR surveys.Finally,by integrating actual data collected from road GPR surveys in Nanchang city,a road quality assessment was con-ducted,and potential defect types were identified.The results indicated that this method effectively served the detection of urban road quality and defects using GPR,providing an efficient approach for improving urban road quality and defect investigations.This research holds significant importance in addressing the increasing challenges of urban road safety.

关 键 词：探地雷达 正演模拟 gprMax 道路质量检测 病害探测 

分 类 号：P631[天文地球—地质矿产勘探]