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Numerical Analysis in Hydrograph Determination for Sluice Gate installed Levee

배수통문이 설치된 제방의 설계수위파형결정에 관한 수치해석

  • Received : 2015.03.23
  • Accepted : 2015.10.05
  • Published : 2015.12.30

Abstract

According to national regulations and its commentary, such as Rivers Design Criteria & Commentary (KWRA, 2009), Foundation Structure Guideline and its Commentary(MLTM, 2014 and KGS, 2009), the integrity evaluation of river levee includes slope stability evaluation of both riverside/protected low-land and piping stability evaluation with respect to foundation and levee body along with water level conditions. In this case the design hydro-graph can be the most important input factor for the integrity evaluation, however it is fact that the national regulations do not provide any proper determination methods regarding hydro-graph. The authors thus executed an integrity evaluation of sluice gate in levee by changing each hydro-graph factor, including rising ordinary water level, lasting flood water level, falling water level, and flood frequency, in order to suggest a determination method of reasonable hydro-graph. As a result, the authors suggested that at least over 57 hours of rising ordinary water level and over 53 hours of lasting flood water level should be considered for the design hydro-graph of sluice gate in levee at Mun-san-jae.

Keywords

Levee;Integrity evaluation;Piping;Slope stability;Design Hydro-graph;Flood Event

References

  1. Ministry of Land, Transport and Maritime Affairs (2014), Foundation Structure Guideline, MLTM, Korea.
  2. Nakajima, H. (2003), River Levee, Kibodang Press, japan.
  3. National Emergency Management Agency (2013), Disaster Annual Report (2013).
  4. Ministry of Land, Transport and Maritime Affairs (2009), Nakdong River Restoration 23 area enforcement design, MLTM, Korea.
  5. Km, K. H., Yoon, K. S., Lee, J. W., Lee, S. J., Yeo, K. D., Cha, J. H., Lee, D. S., Hwangb, J. K., Kim, J. M., Choi, B. H., Oh, S. Y. (2004), Development of Advanced Technologies for Levees, Final Report, Korea Agency for Infrastructure Technology Advancement, pp.68-74.
  6. Kim, J. M., Kim, J. S., Oh, E. H., and Cho, W. B. (2014), "Numerical Analysis in Hydrograph Determination for Cohesive Soil Levee", Journal of Korea Society of Engineering Geology, Korea Society of Engineering Geology, Vol.30, No.4, pp.81-92.
  7. Korea Geotechnical Society (2009), Foundation Structure Guideline's commentary, MLTM, Korea.
  8. Korea Water Resources Association (2009), River Design criteria & Commentary, MLTM, Korea.
  9. Ministry of Construction (2000), Levee Design Guidelines, pp.221-245, Japan.

Acknowledgement

Supported by : Ministry of Land, Infrastructure and Transport (MOLIT)