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2020 Vol.19, Issue 4 Preview Page

Research Article

A Study on Applicability Evaluation of digital Photogrammetry for Settlement Measurement of Soil Contaminated with Heavy Metals

중금속으로 오염된 지반의 침하계측을 위한 수치사진측량의 적용성 평가

Jung-Geun Han1
,
Jeong-Jun Park2
,
Seung-Kyong You3
,
Jung-Mann Yun4
,
Gigwon Hong5†
한 중근1
,
박 정준2
,
유 승경3
,
윤 중만4
,
홍 기권5†
1Member, Professor, School of Civil and Environmental Engineering, Urban Design and Study, Chung-Ang University, 84 Heukseok-Ro, Dongjak-gu, Seoul, 06974, Republic of Korea
2Member, Principal Researcher, Incheon Disaster Prevention Research Center, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon, 22012, Republic of Korea
3Member, Professor, Dept. of Civil Engineering, Myongji College, 134 Gajwa-ro, Seodaemun-gu, Seoul, 03656, Republic of Korea
4Member, Professor, Dept. of Construction Information System, ShinAnsan University, 135 Shinansandeahak-ro Danwon-gu, Ansan, Republic of Korea
5Member, Director, Institute of Technology Research and Development, Korea Engineering & Construction, 3-16, Jungdae-ro 25-gil, Songpa-gu, Seoul, 05661, Republic of Korea
*gigwon_hong@kecgroup.kr
31 December 2020. pp. 85-93
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Abstract

This study describes the results of laboratory model test on settlement of soil contaminated with heavy metals, in order to evaluate the applicability of VMS to the measurement of gound settlements generated during the purification of contaminated soil. The measurement results for settlement of contaminated soil were compared using a 3D-Visual Monitoring System (VMS) based on digital photogrammetry and a total station. The test result showed that the settlement of the soil contaminated with heavy metals occurred a lot in the experimental condition in which the hydrophilic filter was applied. The minimum and maximum error ranges of VMS were calculated as ±0.36mm and ±0.87mm, respectively, and the error of VMS was satisfied in all experimental conditions. The average error rate of VMS was lower in the hydrophilic filter condition than in the hydrophobic filter condition. Therefore, it was evaluated that VMS can be applied to measure the settlement of contaminated soil.

Keywords
Ground deformation
Digital photogrammetry
3D measurement
Monitoring system

본 연구에서는 오염된 지반의 정화 시에 발생되는 침하량 계측에 대한 VMS의 적용성을 평가하기 위하여, 오염지반의 침하에 대한 실내실험을 수행하였다. 즉, 수치사진측량기법을 기반으로 개발된 3D-Visual Monitoring System(VMS)와 기존 계측장비인 토탈스테이션을 이용하여, 오염지반 침하에 대한 계측결과를 비교하였다. 실험결과, 중금속으로 오염된 지반의 침하량은 친수성 필터가 적용된 실험조건에서 많이 발생하였다. 계측결과를 바탕으로 VMS의 오차범위를 산정한 결과, 최소 및 최대 오차범위는 각각 ±0.36mm와 ±0.87mm 산정되었고, VMS의 오차량은 모든 실험조건에서 오차범위를 만족하는 것으로 확인되었다. VMS의 평균오차율을 산정한 결과, 소수성 필터조건에 비하여 친수성 필터 조건에서 낮은 평균오차율을 보였다. 이를 바탕으로 오염된 지반의 침하량 계측에 있어서 VMS의 적용이 가능한 것으로 평가되었다.

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Information
  • Publisher :Korean Geosythetics Society
  • Publisher(Ko) :한국지반신소재학회
  • Journal Title :Journal of the Korean Geosynthetics Society
  • Journal Title(Ko) :한국지반신소재학회 논문집
  • Volume : 19
  • No :4
  • Pages :85-93
  • Received Date : 2020-12-09
  • Revised Date : 2020-12-19
  • Accepted Date : 2020-12-22
  • DOI :https://doi.org/10.12814/jkgss.2020.19.4.085
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