Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
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An Experimental Study on Scout Area around Groynes with Permeability and Install Angle

투과율과 설치각도에 대한 수제주변 세굴영역에 관한 실험 연구

  • Yeo Hong-Koo (Dept. of Water Resources Research, Korea Institute of Construction Technology) ;
  • Kang Joon-Gu (Dept. of Water Resources Research, Korea Institute of Construction Technology) ;
  • Kim Sung-Jung (Dept. of Water Resources Research, Korea Institute of Construction Technology) ;
  • Rho Young-Sin (Dept. of Water Resources Research, Korea Institute of Construction Technology)
  • 여홍구 (한국건설기술연구원 수자원연구부) ;
  • 강준구 (한국건설기술연구원 수자원연구부) ;
  • 김성중 (한국건설기술연구원 수자원연구부) ;
  • 노영신 (한국건설기술연구원 수자원연구부)
  • Published : 2006.07.01
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Abstract

There has been debated on the fact that a scour hole produced by the construction of a groyne has environmental benefits such as provision of diverse underwater habitats and shelter for fish in the event of flooding. Therefore researches are focusing on the scour field around the groyne area beyond the existing safety issues. The scour area on aquatic habitats would format many form on groyne conditions so that the analysis of scour area is strongly required. This study conducted the experiments on permeability and installation angle of groyne and suggested the data for groyne selection in environmental point as analyzing scour area. The physical modeling was performed in different permeability (0%, 20%, 40%, 60%, 80%) and installation angle of groyne ($60^{\circ},\;90^{\circ},\;120^{\circ}$). As the result of the study, scour area and scour depth at maximum scour condition was revealed for each case and suggested the differences according to experiment conditions.

수제설치로 인해 발생되는 세굴공은 수중생물의 다양한 서식처 및 홍수 시 어류의 피난처 제공 등 환경 기능을 내포할 수 있다는 관점이 부각되고 있으며 이와 같은 요구를 충족하기 위해서는 기존의 안정성 문제에 대한 관점에서 벗어난 수제주변 세굴영역에 대한 연구가 필요하다. 생태서식처로의 세굴영역은 수제형태에 따라 다양한 형태가 생성될 수 있으므로 이에 대한 분석이 요구된다. 본 연구는 투과율과 설치각도를 변화한 실험을 통해 수제주변 세굴규모를 파악하여 환경적인 측면의 수제선정의 자료를 제안하는데 목적이 있다. 실험에 적용된 투과율은 불투과(0% 투과)와 투과수제(20%, 40%, 60%, 80%)이며 설치각은 $60^{\circ},\;90^{\circ},\;120^{\circ}$이다. 실험결과, 각 실험조건에 따른 최대세굴 발생시의 세굴영역과 세굴심을 분석할 수 있었으며 수제조건에 대한 차이를 제시하였다.

Keywords

References

  1. 강준구, 여흥구, 김성중 (2005). '단일 횡수제 조건에 따른 선단부 유속과 재순환 영역에 대한 실험연구.' 한국수자원학회논문집, 한국수자원학회, 제38권, 제2호, pp. 143-153 https://doi.org/10.3741/JKWRA.2005.38.2.143
  2. Copeland, R. R. (1983). 'Bank Protection Techniques Using Spur Dikes', Miscellaneous paper HL83-1, U. S. Army Engineer Waterways Experiment Station
  3. Jansen, P. (1979). Principles of River Engineering, Pitman, London, England
  4. Klingernan, P. C, Kehe, S. M., and Owusu, Y. A (1984). Streambank Erosion Protection and Oonnel Scour Manipulation using Rockfill Dikes and Gabions. Report No. WRRl-98, Water Resources Research Institute, Oregon State Univ., Corvallis, Ore
  5. Knight, S. S., and Cooper, C. M. (1991). 'Effects of Bank Protection on Stream Fishes.' Proc, 5th Federal Interagency Sedimentation Conf., Subcommittee on Sedimentation of the Interagency Advisory Committee on Water Data, Las Vegas, Vol. 13, pp. 34-39
  6. Kuhnle, R. A., Alonso, C. V., and Shields, F. D., Jr. (2002). 'Local Scour Associated with Angled Spur Dikes.' J. Hydraulic Eng., Vol. 128, No. 12, pp. 1087-1093 https://doi.org/10.1061/(ASCE)0733-9429(2002)128:12(1087)
  7. Linder, C. P. (1969). Oannel Improvement and Stabilization Measures. State of Knowledge of Channel Stabilization in Major Alluvial Rivers, Technical Report No.7, G. B. Fenwick, ed., USACE Committee on Channel Stabilization
  8. Martinez, E., Ettema, R., and Lachhab, A. (2002). 'Scour Experiments on Dike Angle, Porosity, and Hook for a Thin Dike.' ICSF-1, pp. 364-372
  9. Shields, F. D. Jr., Cooper, C. M., and Knight, S. S. (1995), 'Experiment in Stream Restoration.' J. of Hydraulic Eng., Vol. 121, No.6, pp. 494-502 https://doi.org/10.1061/(ASCE)0733-9429(1995)121:6(494)
  10. Thompson, D. M. (2002). 'Channel-bed scour with high versus low deflectors.' J. Hydraulic Eng., Vol. 128, No.6, pp. 640-643 https://doi.org/10.1061/(ASCE)0733-9429(2002)128:6(640)