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보강토 옹벽 변위측량을 위한 사진측량용 표정판 적용 가능성 평가

Feasibility Assessment of the Photogrammetric-board for Deformation Measuring of Reinforced-soil Wall

  • Lee, Hyoseong (Dept. of Civil Engineering, Sunchon National University) ;
  • Na, Hyunho (Dept. of Civil Engineering, Sunchon National University) ;
  • Park, Byung-Wook (Dept. of Civil, Safety, and Environmental Engineering, Hankyong National University) ;
  • Kim, Yong Don (Dept. of Civil, Safety, and Environmental Engineering, Hankyong National University)
  • 투고 : 2016.08.23
  • 심사 : 2016.10.20
  • 발행 : 2016.10.31

초록

본 연구는 시간경과에 따른 보강토 옹벽의 변위를 측정하기 위해, 근거리수치사진측량을 적용하였으며, 기준점 측량없이 영상으로부터 외부표정요소와 3차원 위치를 결정하기 위해 표정판 활용 방법을 제안하였다. 표정판으로 계산한 보강토 옹벽의 변위를 토털스테이션으로 측정한 변위와 비교한 결과 5cm 이내의 오차를 보였으며, 시공 후 3개월이 지난 보강토 옹벽의 변위는 없었다. 따라서 사진측량용 표정판을 이용한 제안방법으로 보강토 옹벽의 변위측량이 가능하다는 것을 제시할 수 있었다.

This study applied close-range digital photogrammetry to measure deformation of reinforced-soil wall as the passed time. We proposed to utilize the photogrammetric-board to determine 3D coordinates and compute exterior orientation parameters from the images without measuring control points. The displacements by the proposed method are compared with those of the Total-station. As results, measuring errors was within 5cm, and the deformation was not occurred in the 3 months. The proposed method using the photogrammetric-board therefore can be utilized to measure deformation of the reinforced-soil wall.

키워드

참고문헌

  1. Han, J.G., Hong, K.K., and Kim, Y.S. (2006), Displacement measuring lab. test of reinforced-soil retaining wall block using 3D digital photogrammetry image, J. Korean Geosynthetics Society, Vol. 5, No. 3, pp. 45-52. (in Korean with English abstract)
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  6. Luhmann, T., Robson, S., Kyle, S., and Harley, I. (2006), Close Range Photogrammetry: Principles, Methods and Applications, John Wiley & Sons Inc., New Yok, N.Y.
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피인용 문헌

  1. Monitoring Technique Using a Vision-based Single-Camera System for Reinforced Soil Retaining Wall vol.20, pp.6, 2016, https://doi.org/10.9798/kosham.2020.20.6.209