A Study on the Analysis of Positional Accuracy between the GPR Survey Data and Underground Space Integration Map

현장 GPR 탐사자료와 지하공간통합지도 상호위치 정확도 분석에 관한 연구

  • Received : 2020.11.23
  • Accepted : 2020.12.08
  • Published : 2020.12.31


Recently, issues regarding underground safety such as sink hole, ground subsidence and damage to old underground facilities have been increasing in urban areas, raising the need for more accurate management of underground facilities. Thus, this study derived a technique for comparing spatial data of underground facilities acquired from GPR exploration results acquired at the site with spatial data of integrated underground spatial maps. Using this underground space integrated map-linked service prototype program developed through this study, comparing the location information of the GPR exploration results and the underground space integrated map for the verification of site usability in some sections around Gangnam Station, the results demonstrated that the location of the map is 0.879m maximum, minimum of 0.101m and the average fudge factor was 0.625m. If accuracy of the GPR exploration results is guaranteed, it is judged that it can be used to improve the location accuracy of the underground space integration map.


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