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The variation of channel flow through opening the gate at Shimgok-Cheon by using SMS program

SMS를 이용한 인천 심곡천 하구 수문개방에 따른 하천흐름변화 분석

  • Kim, Chanyeong (Department of Civil Engineering, Chungnam National University) ;
  • Jeong Gwansoo (Department of Civil Engineering, Chungnam National University) ;
  • Kim, Youngkyu (International Center for Urban Water Hydroinformatics Research & Innovation)
  • 김찬영 (충남대학교 토목공학과) ;
  • 정관수 (충남대학교 토목공학과) ;
  • 김영규 ((재)국제도시물정보과학연구원)
  • Received : 2024.04.05
  • Accepted : 2024.05.23
  • Published : 2024.06.30

Abstract

By installing the gate at the estuary to prevent the inflow of seawater into the river, it was prevented the inflow of seawater into the river, but as a result, the velocity of the river was rapidly decreased, turning it into a river with almost stoped flow. Since a river must have flow to maintain its function, in this study, it examined improving the flow of the river through the operation of a gate in Simgok-cheon where is a river that has been closed by a hydrological system at the estuary and almost stoped flow. It was considered that if the gate are operated according to the tide level, it could be changed into a river through which water flows by raising it to 0.49 m/s, which is about 10 times faster than the current slow flow rate of 0.05 m/s while maintaining the highest or lowest target elevation.

하천으로 해수의 유입을 막기 위해 하구에 수문을 설치함으로써 해수유입은 막을 수 있었으나 이로 인해 하천의 유속은 급격히 감소하여 흐름이 없는 하천으로 변화되었다. 하천은 흐름이 있어야 하천의 기능을 유지할 수 있기에 본 연구에서는 하구에 수문 설치로 인하여 흐름이 발생하지 않은 하천인 심곡천을 대상으로 수문 운영을 통해 하천의 흐름을 개선하도록 검토하였다. 조위에 따라 수문을 운영하게 되면 최고 및 최저 목표수위를 유지하면서 현재 0.05 m/s의 느린 유속에서 약 10배 정도 빠른 0.49 m/s까지 상승시켜 물이 흐르는 하천으로 변화시킬 수 있는 것으로 검토되었다.

Keywords

References

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