Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Verification of the Effectiveness of Hydraulic well through Large-scale Embankment Test

대형제방실험을 통한 Hydraulic well의 효용성 검증

  • Park, Min-Cheol (Department of Civil Engineering, Kumoh National Institute of Technology) ;
  • Kim, Jin-Man (Geotechnical Engineering Research Institute, KICT) ;
  • Moon, In-Jong (Geotechnical Engineering Research Institute, KICT) ;
  • Jin, Yoon-hwa (Department of Civil Engineering, Kumoh National Institute of Technology)
  • 박민철 (금오공과대학교 토목공학과) ;
  • 김진만 (한국건설기술연구원) ;
  • 문인종 (한국건설기술연구원) ;
  • 진윤화 (금오공과대학교 토목공학과)
  • Received : 2017.09.04
  • Accepted : 2017.10.13
  • Published : 2017.10.31
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Abstract

This paper reports the results of afield appliance study of the hydraulic well method to prevent embankment seepage, the large-scale embankment experiment and seepage analysis to examine the traits of the seepage pressure. The experimental procedure was focused on the pore pressure after examining the detected value of the pore pressure gage. The inner water levels of hydraulic well were compared with the pore pressure data, which were used to inspect the seepage variations. Two different large-scale experiments were conducted according to the installation points of the hydraulic wells. The decrease in seepage pressure reached a maximum of 37% from the experimental results. The experimental pore pressure results were similar to those of the analyses. In addition, the pore pressure oriented from the water level variations of the hydraulic well showed similar patterns between the experiment and analysis, but if the hydraulic well was deeper, the analyzed water levels were larger than the experimental values.

본 논문은 하천 제방의 침투방지공법으로 일본 미쓰야마 하천 국도 사무소에서 제시한 월륜 공법에 대한 효용성을 연구한 것으로, Hydraulic well의 현장 적용성과 시공성 개선, 침투압 분포 특성을 파악하기 위하여 대형 제방실험과 침투 해석을 수행하였다. 대형제방실험의 방법은 제외지 수위를 재현하여 제방을 포화시킨 후 제방의 간극수압계 변화를 감지, hydraulic well의 내부 수위를 0.1 m ~ 0.7m로 변화하고 이때 간극수압계를 통해 측정된 간극수압을 비교하여 침투압의 변화를 확인하였다. 대형 제방실험은 hydraulic well의 설치 지점에 따라 두 가지 방법으로 수행하였다. 대형 제방실험결과, hydraulic well의 내부 수위 변화에 따라 최대 37%의 침투압 저감 현상이 발생하는 것으로 평가되었다. 대형 제방실험과 침투 해석의 간극수압을 비교한 결과 거의 유사한 경향이 나타났다. hydraulic well의 내부 수위 변화와 산정된 간극수압의 변화도 비슷한 양상을 보였으나, 심도가 깊어짐에 따라 대형 제방실험결과보다 침투 해석의 간극수압이 더 크게 산정되었다.

Keywords

References

  1. K. S. Kim, and K. T. Jo, "A Study on the Estimation of Leakage and the probing Leakage in the River Bank", Journal of the Korean Society of Groundwater Environment, vol. 6, no. 4, pp. 213-217, 1999.
  2. KICT(Korea Institute of Civil Engineering and Building Technology), The final report of the river embankment related advanced technology development, Korea, pp. 23-31, pp. 68-78, 2004.
  3. KGS(Korea Geotechnical Society), Dam and embankment design and construction safety management technology, Goomibook, pp. 391-573, 2012.
  4. D. K. Im, H. K. Yeo, K. H. Kim, J. G. Kang, "Suitability Analysis of Numerical Models Related to Seepage through a Levee", Journal of Korea Water Resources Association, vol. 39, no. 3, pp. 241-252, 2006. DOI: https://doi.org/10.3741/JKWRA.2006.39.3.241
  5. J. M. Kim, and I. J. Moon, "Analysis of River Levee Failure Mechanism by Piping and Remediation Method Evaluation", Journal of the Korea Academia-Industrial cooperation Society, vol. 18, no. 3, pp. 600-608, 2017. DOI: https://doi.org/10.5762/KAIS.2017.18.3.600
  6. H. S. Jung, Y. S. Byun, B. S. Chun, B. H. Choi, J. M. Kim, "Numerical Analysis for Integrity Evaluation of River Bank", Journal of Korean geo-environmental Society, vol. 11, no. 11, pp. 19-26, 2010.
  7. R. L. Taylor, and C. B. Brown, "Darcy flow with a free surface", Hydraulic Division, ASCE, vol. 93, pp. 25-33, 1976.
  8. S. P. Neuman, and P. A. Witherspoon, "Finiter element method of analyzing steady seepage with a free surface", Water Resources Research, America, vol. 6, pp. 889-897, 1970. DOI: https://doi.org/10.1029/WR006i003p00889
  9. T. Uno, H. Morisugi, T. Sugii, Y. Nakano, "Stability Evaluation of River Levees on the Basis of Actual Levee Breachings", Japan Society of Civil Engineers, vol. 400, no. 3-10, pp. 55-76, 1987.
  10. Matsuyama River National Highway Office. "Flood Prevention Handbook", Shikoku Regional Development Bureau, Japan, 2011.
  11. KWRA(Korea Water Resources Association), River Design Standard, Ministry of Land, Transport and Maritime Affairs, Korea, 2009.
  12. J. H. Kim, "Experimental and Numerical Analyses of Seepage Flows in Levees with Permeable Foundations", Department of Civil Engineering Graduate School Kyungsung University, 2013.
  13. KICT(Korea Institute of Civil Engineering and Building Technology), An Analysis of embankment, Analysis of reinforcement techniques of Levee infiltration, Ministry of Land Transport and Maritime Affairs, Korea, 2006.
  14. A. Casagrande, "Notes on the design of earth dams", Proc. Of Boston Society of Civil Engineers, 1950.
  15. H. L. Sherard, "Influence of soil properties and construction methods on the performance of homogeneous earth dams", Technical Memorandum 645, U. S. Department of the Interior, Bureau of Reclamation, pp. 1-71, 1953.
  16. NAVFAC Manual, Foundation & Earth Structures, 1986
  17. K. K. Kwon, "An improved design method of Levee culvert using 3D seepage analysis", Ph.D dissertation, Kyunghee University, pp. 5-228, 2007.
  18. R. F. Carsel, and R. S. Parrish, "Developing joint probability distribution of soil water retention characteristics", Water Resource Research, vol. 24, no. 5, pp. 755-769, 1988. DOI: https://doi.org/10.1029/WR024i005p00755
  19. M. T. Van Genuchten, "A closed-form equation for predicting the hydraulic conductivity of unsaturated soils", Soil science society of America journal, vol. 44, no. 5, pp. 892-898, 1980. DOI: https://doi.org/10.2136/sssaj1980.03615995004400050002x