한국습지학회지 (Journal of Wetlands Research)

  • 제18권1호
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  • Pages.45-57
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  • 2016
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  • 1229-6031(pISSN)
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  • 2384-0056(eISSN)
한국습지학회 (Korean Wetlands Society)
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2차원 수리해석에 의한 하천 제방 위험도 평가분석

Hazard Evaluation of Levee by Two-Dimensional Hydraulic Analysis

  • 박준형 (경북대학교 토목공학과) ;
  • 김태형 (국토교통부 낙동강홍수통제소 예보통제과) ;
  • 한건연 (경북대학교 토목공학과)
  • Park, Jun Hyung (Department of Civil Engineering, Kyungpook National University) ;
  • Kim, Tae Hyung (Forecast & Control Division, Nakdongriver Flood Control Office, MOLIT) ;
  • Han, Kun Yeun (Department of Civil Engineering, Kyungpook National University)
  • 투고 : 2015.12.17
  • 심사 : 2016.01.28
  • 발행 : 2016.02.29
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초록

실무에서 사용되고 있는 제방의 안전도 평가는 여러 가지 붕괴원인 중 하나의 요인에 대해서만 평가를 하거나 주로 제방의 물리적인 특성을 이용한 1차원 수리분석을 통한 평가에 국한되어 왔다. 하지만 이러한 평가기법들은 제방의 다양한 붕괴원인을 동시에 고려할 수 없으며, 정확한 지형정보를 필요로 하는 곳에서 신뢰도가 떨어지는 문제점을 안고 있다. 따라서 본 논문에서는 정확한 지형정보를 반영한 2차원 수리해석을 결과를 이용하여 제방의 다양한 붕괴원인인 월류, 침투, 침식위험도를 동시에 고려한 제방 위험도 지수를 제안하였다. 낙동강 유역의 주요 합류부에 대해 하천준설사업 전 후의 지형 변화를 고려하여 2차원 수리모형을 이용한 수리해석을 실시하고 그 결과를 통해 제방 위험도를 평가하였다. 본 연구는 정확한 하천의 형상을 반영한 수리해석 결과를 이용한 객관적이고 신뢰도 높은 제방위험도 평가에 기여할 수 있을 것으로 기대된다.

Levee safety is being evaluated using one of the several failure causes including overtopping, infiltration and erosion or 1D hydraulic analysis considering physical characteristics of levee in practical engineering works. However, mentioned evaluation methods are not able to consider various failure causes of levee at the same time and to get reliable results where requires the accurate topographic information. This study proposed the flood hazard index which is able to consider several hazard factors involving overtopping, infiltration and erosion risk simultaneously. The index was generated from results of 2D hydraulic analysis reflecting accurate topographic information. The study areas are the confluences of the Nakdong River and two streams(Gamcheon and Hoecheon). Levee safety was evaluated using results based on 2D hydraulic analysis considering riverbed changes of before and after dredging work in the study area. This study will contribute to estimate the reliable safety evaluation of levee where may have hazards during extreme flood events.

키워드

참고문헌

  1. Ahn, KH, Han, KY and Kim, BH (2009). Risk assessment of levee embankment applying reliability index, J. of Korea Water Resources Association, 42(7), pp. 547-558. [Korean Literature] https://doi.org/10.3741/JKWRA.2009.42.7.547
  2. Bogadi, I, Duckstein, L and Castano, E (1976). Effects of stochastic model choice hydraulic design, Proc. 2nd IAHR Int. Symp. on Stochastic Hydraulics, Lund, Swede.
  3. Brizendine, AL (1997). Risk-based analysis of levees, Ph.D. Dissertation, Univ. of West Virginia.
  4. Calle, EOF., Best, H, Sellmeijer, JB and Weijers, J (1989). Probabilistic analysis of piping underneath water retaining structures, Proc. 12th Int. Conference on Soil Mechanics and Foundation Engineering, Rio de Janeiro, 2, pp. 819-822.
  5. Hicks, FE and Steffler, PM (1995). Comparison of finite element methods for the St.Venant equations, International J. for Numerical Methods in Fluids, 20(230), pp. 99-113. https://doi.org/10.1002/fld.1650200202
  6. Kang, TU, An, HU, Lee, GM and Jung, KS (2014). Levee stability assessment depending on levee shape and flood wave, J. of Korea Water Resources Association, 47(4), pp. 307-319. [Korean Literature] https://doi.org/10.3741/JKWRA.2014.47.4.307
  7. Lee, SJ, Yoon, KS and Kim, KH (2002). Comparison of safety evaluation techniques for levees, The Conference of Korea Society of Civil Engineers, pp. 612-615. [Korean Literature]
  8. Lee, SJ, Yoon, KS and Kim, KH (2003). Application of safety assessment techniques for levees, The Conference of Korea Society of Civil Engineers, pp. 2606-2611. [Korean Literature]
  9. Meer, MT, Woldringh, RF and Knuuti, K (2009). Comparison of the dutch and american levee safety approach, 2009 ASFPM Conference Orlando USA, pp. 59-68.
  10. Nardo M, Saisana M, Saltelli A and Tarantola S (2005). Tools for composite indicators building, European Commission, EUR 21682 EN . Joint Research Centre, Ispra, Italy, pp. 44-52.
  11. Park, JH, Kim, SH and Lee, CH (2011). Investigation about design parameter of levee using numerical model, J. of Korean Society of Hazard Mitigation, 47(4), pp. 307-319. [Korean Literature]
  12. Peter, p (1982). Canal and River Levees, Elsevier Scientific Publishing Company.
  13. Shim, JW (2008). A study on overtopping risk of levee by using 2-D numerical model, Master's Thesis, Kangwon National University. pp. 55-62. [Korean Literature]
  14. Song, JI, Lee, JH and Yoon, SE (2008). Development of stream assessment technique for restoration and management of urban stream, J. of Korean Society of Civil Engineers, 28(3B), pp. 283-296. [Korean Literature]
  15. Steenbergen, HMGM, Lassing, BL, Vrouwenvelder, ACWM and Waats, PH (2004). Reliability analysis of flood defence system, HERON, 49(1), pp. 51-73.
  16. Termaat, R.J. and Calle, E.O.F. (1994). Short term acceptable risk of slope failure of levees, Proc. of the 13th Int. Conference on Soil Mechanics and Foundation Engineering, New Delhi, India.
  17. Tung, Y.K. and Mays, L.W. (1980). Optimal Risk-Based Design of Water Resource Engineering Projects, Tech. Report CRWR-171, Center for Research in Water Resources, University of Texas, Austin, TX.
  18. Tung, Y.K. and Mays, L.W. (1981). Optimal risk-based hydraulic design of flood levee systems, Water Resources Research, AGU, 17(4), pp. 843-852. https://doi.org/10.1029/WR017i004p00843
  19. Tung, Y.K. (1987). Effects of uncertainties on optimal risk-based design of hydraulic structures, J. of Water Resources Planning and Management Division, ASCE, 113(5), pp. 709-722. https://doi.org/10.1061/(ASCE)0733-9496(1987)113:5(709)
  20. Wang, SSY and Hu, KK (1992). Improved Methodology for Formulating Finite-Element Hydrodynamic Models, Finite Element in Fluids, T.J. Chung, ed., 8, Hemisphere Publishing Corp., pp. 457-478.
  21. Yoon, KS (2004). Levee failure type analysis and design methods, J. of Korea Water Resources Association, 37(5), pp. 50-60. [Korean Literature]

피인용 문헌

  1. Experimental Study on Stability of Levee Protection Method vol.08, pp.12, 2016, https://doi.org/10.4236/eng.2016.812077
  2. Dual criterion-based dynamic evaluation approach for dike safety pp.1741-3168, 2018, https://doi.org/10.1177/1475921718813376
  3. Selection of River Disaster Hazard Area for Levee Risk Analysis vol.18, pp.2, 2018, https://doi.org/10.9798/KOSHAM.2018.18.2.133