Research and application of 3D ground penetrating in road detection

doi:10.13474/j.cnki.11-2246.2024.0227

Abstract

Abstract: In recent years,the development of urban construction and the development and utilization of underground space have brought convenience to people's lives, but to a certain extent, it has also led to the occurrence of urban road hazard, and the frequent occurrence of road collapse accidents has prompted us to conduct a comprehensive physical examination of urban roads.In this paper, the propagation characteristics of geo-radar in media such as pipe, culvert and cavity are numerically simulated based on GprMax, which is based on the principle of 3D finite-difference time-domain method.A preliminary forwardmodeling of radar images is established and the image characteristics of radar data bodies are analysed using the example of 3D ground-penetrating radar in road detection work in Tianjin area, while relevant experiences and practices in the detection of urban road subsurface hazardare are introduced,Which provide technical methods and guidance for road detection.

Key words: GprMax, 3D ground-penetrating radar, road detection, application

CLC Number:

P258

ZHAO Zhen, HUANG Yong, FENG Kun. Research and application of 3D ground penetrating in road detection[J]. Bulletin of Surveying and Mapping, 2024, 0(2): 148-152.

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