Journal of the Korean earth science society (한국지구과학회지)

The Korean Earth Science Society (한국지구과학회)
권호 표지
DOI QR코드

DOI QR Code

The Safety Assessment of Embankment by Three Dimensional Electrical DC Modeling

3차원 전기비저항 모델링을 통한 제체의 안정성 분석 연구

  • Oh, Seok-Hoon (Department of Geosystem Engineering, Kangwon National University)
  • 오석훈 (강원대학 지구시스템공학과)
  • Published : 2008.10.30
Download PDF
⟨ Previous Next ⟩

Abstract

Recently, the electrical DC survey has frequently been performed to assess the safety of embankment. This study showed that the damaged section of embankment could be appropriately detected by the survey only when the three dimensional effect was correctly considered. The shape of the three dimensional embankment was numerically implemented, and a proper modeling was performed to confirm the effect by analyzing the apparent and inverted true resistivity. Then, the field work was carried out. The three dimensional interpretation distinguished the erroneous weak zones from the geometrical artifact, and the embankment was ensured as safe both by the additional survey performed in rainy season and the partial excavation for direct observation.

최근 제체 등의 수자원시설물에 대한 안정성 검토를 위해 전기비저항 탐사가 많이 수행되고 있다. 본 연구에서는 전기비저항 조사를 통해 제체의 안정성을 검토하고자할 때, 제체의 3차원 형상에 의한 효과를 정확히 분석하여야만 손상 구간을 파악할 수 있음을 제시하고자 한다. 이의 검토를 위해 3차원 전기비저항 모델링을 통해 3차원 형태의 제체 모양을 수치모델로 구현하고, 제체 내부의 상태에 따른 겉보기 비저항과 역산 결과를 분석하였다. 또한 실제 3차원 곡면 형태를 가진 제체에서 전기비저항 탐사를 수행하여 그 결과를 분석하였다. 그 결과, 단순히 2차원으로 해석하였을 때 이상대로 추정되었던 구간이, 실제로는 3차원 곡면에 의한 기하학적 효과였음이 밝혀졌으며, 3개월 뒤에 수행된 우기의 추가 조사와 추후 일부 굴착을 통하여 제체의 내부가 안전한 상태임을 확인하였다.

Keywords

References

  1. 김정호, 송윤호, 정승환, 2000, 전기.전자탐사 기술을 이용한 지반구조의 영상화. 2000년도 한국물리탐사학회.한국지반공학회 지반조사위원회 공동특별강연논문집, 121-154
  2. 김형수, 백건하, 김중열, 김유성, 손호웅, 2002, 지구물리탐사법을 활용한 절리발달 암반지역에서의 그라우팅 효과판정. 지구물리, 5, 175-198
  3. 송성호, 장의웅, 김진호, 김진성, 김진춘, 2002, 전기비저항 수직탐사를 이용한 저수지 그라우팅 구간 평가. 지질공학회지, 12, 63-73
  4. 오석훈, 김형수, 2005, 필댐의 3차원 기하 효과에 따른 전기비저항 왜곡 효과 분석. 한국물리탐사학회.대한지구물리학회 2005 공동학술대회 논문집, 55-58
  5. 오석훈, 선창국, 2004, 필댐 안정성 평가를 위한 물리탐사와 SPT 자료의 분석. 지구물리, 7, 171-183
  6. 조인기, 강형재, 김기주, 2006, 저수지 3차원 구조에 의한 전기비저항 탐사자료의 왜곡. 물리탐사, 9, 291-298
  7. Ramirez, A., Daily, W., Binley, A., LaBrecque, D., and Roelamnt, D., 1996, Detection of leaks in underground storage tanks using electrical resistivity methods. Journal of Environmental Engineering and Geophysics, 1, 189-203 https://doi.org/10.4133/JEEG1.3.189
  8. Song, S.H., Song, Y., and Kwon, B.D., 2005, Application of hydrogeological and geophysical methods to delineate leakage pathways in an earth fill dam. Special issue published jointly by Australian Society of Exploration Geophysicists 36, The Society of Exploration Geophysicists of Japan 58, Korean Society of Earth and Exploration Geophysicists 8, 92-96
  9. Spitzer, K., 1995, A 3-D finite difference algorithm for DC resistivity modeling using conjugate gradient methods. Geophysical Journal International, 123, 903-914 https://doi.org/10.1111/j.1365-246X.1995.tb06897.x

Cited by

  1. Effect of nitrogen and potassium fertilization on strawberries in an annual hill culture system: 1. Yield and fruit size vol.21, pp.9-10, 1990, https://doi.org/10.1080/00103629009368268
  2. Effect of nitrogen and potassium fertilization on strawberries in an annual hill culture system: 2. Soil N and K levels vol.21, pp.9-10, 1990, https://doi.org/10.1080/00103629009368269
  3. Effect of nitrogen and potassium fertilization on strawberries in an annual hill culture system: 3. Leaf nutrient levels vol.21, pp.9-10, 1990, https://doi.org/10.1080/00103629009368270
  4. Evaluation of water hyacinth as a feed for ruminants vol.41, pp.7-8, 1991, https://doi.org/10.1080/17450399109428519
  5. Direct measurement of petiole sap nitrate in potato to determine crop nitrogen status vol.16, pp.3, 1993, https://doi.org/10.1080/01904169309364550
  6. Can an isotopic method allow for the determination of the phosphate‐fixing capacity of soils? vol.24, pp.5-6, 1993, https://doi.org/10.1080/00103629309368807
  7. Temporal variation in potassium chloride extrac‐table aluminum, sodium, and soil pH, and the effects on interpretation of subsoil aluminum toxicity in yellow earths vol.24, pp.5-6, 1993, https://doi.org/10.1080/00103629309368818
  8. Consumption of dietary fiber in rural Mexico vol.34, pp.2, 1995, https://doi.org/10.1080/03670244.1995.9991454
  9. digestibility, crude protein content, and mineral concentrations of cynodon, brachiarin, and digitaria accessions in a humid tropical region of Puerto Rico vol.27, pp.13-14, 1996, https://doi.org/10.1080/00103629609369732
  10. Studies on soil rhizosphere: speciation and availability of Cd vol.8, pp.1-2, 1996, https://doi.org/10.1080/09542299.1996.11083263
  11. Soil and plant analysis as a guide for interpretation of the improvement efficiency of organic conditioners added to different soils in Egypt vol.29, pp.11-14, 1998, https://doi.org/10.1080/00103629809370094
  12. organic matter digestibility vol.29, pp.9-10, 1998, https://doi.org/10.1080/00103629809370020
  13. Mineral concentrations of forages grazed by small ruminants in the wet season in benue state, Nigeria. II. Trace minerals and forage crude protein vol.29, pp.9-10, 1998, https://doi.org/10.1080/00103629809370021
  14. Relationship between mean yield, coefficient of variation, mean square error, and plot size in wheat field experiments vol.30, pp.9-10, 1999, https://doi.org/10.1080/00103629909370298
  15. Calculating nitrogen leaching losses and critical nitrogen application rates in dairy pasture systems using a semi‐empirical model vol.43, pp.1, 2000, https://doi.org/10.1080/00288233.2000.9513415
  16. Removal of Total Suspended Solids from Wastewater in Constructed Horizontal Flow Subsurface Wetlands vol.38, pp.6, 2003, https://doi.org/10.1081/ESE-120019865
  17. Statistics for Risk Assessment of Chemical Carcinogens∗ vol.25, pp.4, 2007, https://doi.org/10.1080/10590500701703989
  18. Application of statistical geo-spatial information technology to soil stratification in the Seoul metropolitan area vol.6, pp.4, 2012, https://doi.org/10.1080/17499518.2012.744248
  19. Evaluation of butterhead lettuce cultivars for winter production under a shadenet structure vol.65, pp.2, 2015, https://doi.org/10.1080/09064710.2014.985250
  20. Spatial analysis of hind cover patterns and corresponding remotely-sensed image brightness vol.12, pp.11, 1991, https://doi.org/10.1080/01431169108955255
  21. L.) in a hard-setting soil vol.24, pp.2, 2007, https://doi.org/10.1080/02571862.2007.10634789