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http://dx.doi.org/10.5762/KAIS.2021.22.2.296

GPR Exploration of Non-metallic Water Pipes Linked with Network RTK  

Lee, Keun-Wang (Department of the Multimedia Science, Chungwoon University)
Park, Joon-Kyu (Department of Civil Engineering, Seoil University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.22, no.2, 2021 , pp. 296-301 More about this Journal
Abstract
GPR is used for non-destructive investigations, ground investigations, and underground facilities exploration at construction sites. In this study, the applicability to GPR exploration of water pipes linked to Network RTK was presented. Data on the water supply pipes in the study site were acquired using GPR, and the location and depth of buried water pipes could be measured. The accuracy was evaluated from the GNSS observation performance and showed a deviation of -0.16m ~ 0.15m. This satisfied the equipment performance of the public survey work regulation, suggesting that the exploration of water pipes using GPR is possible. Because GPR does not require grounding installation, as in conventional metal pipe detectors, it will increase the efficiency of work for underground facility exploration. Exploration using GPR can acquire the location and depth of metallic and non-metallic underground facilities, so it can be utilized in the construction of a GIS system. If a comparison of the exploration characteristics is carried out, it will be possible to present various uses of underground facility exploration using GPR.
Keywords
Accuracy Analysis; Ground Penetrating Radar; Network RTK; Underground Facilities; Water Pipe;
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