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Analysis of Storage and Flood Control Effects by Underflow Type of Multi-stage Movable Weir

하단배출형 가동보의 다단 배치에 의한 저류 및 홍수조절 효과 분석

Ji Haeng Lee1
,
Il Yeong Han1
,
Heung Sik Choi2*
이 지행1
,
한 일영1
,
최 흥식2*
1Samhwa Environment and Construction Co. Ltd.
2Department of Civil Engineering, Sangji University
1삼화건설환경㈜
2상지대학교 건설시스템공학과
*교신저자. *Corresponding Author. 
31 December 2016. pp. 294-301
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Abstract

The underflow type movable weirs were arranged in a multi-stage way at a section of the Chiseong River, a tributary of Geum River, where flooding is observed frequently. The flood control and the movable weir management levels were compared with the occasions of installing the existing weir for analysis. The peak discharge decreased by a maximum of 97% for the underflow type movable weir, and the downstream flood elevation decreased by a maximum of 82%. The amount of storage also increased by a maximum of 463% by the distribution and storage functions of the multi-stage arrangement of the underflow type movable weirs. It is possible to suggest that the management level of each movable weir for the target storage of the reach and the flood reduction level through the relationship among this storage, downstream peak flood elevation, and peak flow.

Keywords
Flood control
Multi-stage
Storage control
Underflow type of movable weir

금강의 지류인 치성천의 홍수범람이 빈번하게 발생하는 구간을 대상으로 하단배출형 가동보를 다단으로 배치하여 가동보 관리수위별 홍수조절 및 저류 효과를 기존 고정보의 설치 경우와 비교 분석하였다. 하단배출형 가동보 설치 지점에서의 첨두유량이 최대 97%가 감소하였고, 하류단 홍수위가 최대 82%가 감소하였다. 또한 하단배출형 가동보의 다단 배치로 구조물 상류구간에 저류와 분배 기능으로 저류량이 최대 463%가 증가하였다. 이러한 저류량과 하류단 첨두 홍수위, 유량의 관계를 통해 대상구간의 목표 저류량과 홍수 저감 수위를 위한 각 가동보의 관리수위 제안이 가능하다.

키워드
홍수 조절
다단 배치
저류 조절
하단배출형 가동보
References

References

1
Ahn, J.M. and Lyu, S. 2013. A study on the effect of dredging and operation of weirs on hydraulic characteristics in Nakdong River. Journal of the Korean Society of Civil Engineers 33(5): 1829-1840. (in Korean) 10.12652/Ksce.2013.33.5.1829
2
Chung Nam Provincial Government. 2008. Fundamental Planning Report for Chiseong River. Chung Nam Provincial Government, Daejeon, Korea. (in Korean)
3
Hydrology Engineering Center. 2010. HEC-RAS River Analysis System User's Manual. US Army Corps of Engineering, Davis, CA, USA.
4
Kang, H.S., Kim, S.E. and Hong, H.J. 2011. Numerical investigations of flood level reduction via securing lateral river space for extreme flood. Journal of Korean Society of Hazard Mitigation 11(6): 217226. (in Korean) 10.9798/KOSHAM.2011.11.6.217
5
Kim, J.H., Ahn, S.S. and We, Y.M. 2003. Hydraulic characteristics and improvement effect of water quality by the type of overflow weir. Proceedings of the Korean Society of Civil Engineers Conference. pp. 2751-2754. (in Korean)
6
Kim, S.J., Kim, M.J. and Jun, K.S. 2011. Analysis of the effect of the flood control in the Nakdong Rivers restoration project according to movable weir operating. Proceedings of the Korea Water Resources Association Conference, KWRA. pp. 152-152. (in Korean)
7
Kwon, K.D., Choo, Y.M. and Jee, H.K. 2013. Flood mitigation research method on management water level in weir (upstream/downstream). Proceedings of the Korea Water Resources Association Conference, KWRA. pp. 881-885. (in Korean)
8
Lee, J.Y., Kim, K.Y. and Shin, D.H. 2014. Development of hydraulic model to enable the simulation for operation rule of multi-function weir during the flood season. Journal of Korean Society of Hazard Mitigation 14(3): 329-339. (in Korean) 10.9798/KOSHAM.2014.14.3.329
9
Luis, J., Sidek, L.M., Desa, M.N.B.M. and Julien, P.Y. 2013. Hydropower reservoir for flood control: a case study on Ringlet Reservoir, Cameron Highlands, Malaysia. Journal of Flood Engineering 4(1): 87-102.
10
Navarathinam, K., Gusyev, M., Hasegawa, A., Magome, J. and Takeuchi, K. 2015. Agricultural flood and drought risk reduction by a proposed multi-purpose dam: A case study of the Malwathoya River Basin, Sri Lanka. Proceedings of the 21st International Congress on Modelling and Simulation (MODSIM 2015), November 29th–December 4th, Queensland, Australia. pp. 1600-1606.
11
Noh, J.W., Park, M.K., Shim, M.G. and Lee, S.J. 2012. Development of flood routing model in the navigation waterway to support operations of weir and flood gate. Journal of Korea Water Resources Association 45(9): 959-968. (in Korean) 10.3741/JKWRA.2012.45.9.959
12
Raymond, M. 2014. Wivenhoe Somerset Dam optimisation study-simulating dam operations for numerous floods. Proceedings of Australian National Committee on Large Dams Conference 2014, Canberra, Australia.
13
Yoshioka, Y., Masumoto, T., Maruyama, K. and Minakawa, H. 2015. Agricultural water-gate management for operational flood protection in low-lying paddies. Journal Teknologi 76(15): 37-44. 10.11113/jt.v76.5950
Information
  • Publisher :Korean Society of Ecology and Infrastructure Engineering
  • Publisher(Ko) :응용생태공학회
  • Journal Title :Ecology and Resilient Infrastructure
  • Journal Title(Ko) :응용생태공학회 논문집
  • Volume : 3
  • No :4
  • Pages :294-301
  • Received Date : 2016-11-20
  • Revised Date : 2016-12-04
  • Accepted Date : 2016-12-20
  • DOI :https://doi.org/10.17820/eri.2016.3.4.294
Journal Informaiton Ecology and Resilient Infrastructure Ecology and Resilient Infrastructure
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