한국수자원학회논문집 (Journal of Korea Water Resources Association)

  • 제40권5호
  • /
  • Pages.397-407
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  • 2007
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  • 2799-8746(pISSN)
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  • 2799-8754(eISSN)
한국수자원학회 (Korea Water Resources Association)
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MOUSE 모형을 이용한 관거 내 고형물 퇴적량 산정

Estimation of Solid Deposition in Sewer Systems using MOUSE Model

  • 이재수 (전주대학교 토목환경공학과)
  • 발행 : 2007.05.31
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초록

건기 때의 합류식 관거 내 고형물의 퇴적으로 인해 통수능이 감소하여 여름철 우기시 국지적인 침수가 발생하며 이로 인해 관거 내 퇴적을 더욱 초래할 수가 있다. 이와 같은 문제를 해결하고 관거 시스템을 효율적으로 관리하기 위해서는 관거 내 고형물 퇴적량을 산정하기 위한 식을 개발할 필요가 있다. 그러나 이러한 산정식을 개발하기 전에 컴퓨터 모형 등을 이용한 고형물 퇴적량을 산정하여야 한다. 따라서 본 연구에서는 국내 군자매수유역에 대해 MOUSE 모형을 적용하여 관거 내 고형물 퇴적량을 산정하였으며, 이를 미환경보호청(EPA)에서 개발한 산정식을 이용하여 산정한 퇴적량과 검토하였다. MOUSE 모형을 적용하여 산정한 값은 EPA에서 1977년에 개발한 초기의 산정식에 의한 결과보다는 작지만 1984년에 개발된 산정식에 의한 결과보다는 다소 크게 나타나고 있다. 퇴적고형물의 관측자료가 구비되어 있지 않아 모형에 의한 산정치를 비교하기는 곤란하지만 모형에 의해 산정결과가 신뢰성이 있다고 판단되며, 추후 군자배수유역에 대한 산정식을 유도하는데 이용할 수 있다고 본다.

The deposition of sewer solids during dry weather in combined sewer systems results in a loss of flow capacity that may restrict flow and cause a local flooding and enhanced solids deposition. In order to solve these problems and to manage sewer systems efficiently, development of estimation equations for solid sediments In sewer systems is needed. However, estimation of solid sediments has performed using specific methods such as computer model before the development of estimation equations. In this study, solid sediments in sewer systems were estimated using MOUSE model for Gunja drainage basin in Korea and the estimated results were verified using estimation equations developed by the U.S. Environmental Protection Agency. As results, the estimated values using MOUSE model are smaller than that of equations developed in 1977 but greater than that of equations developed in 1984. Although the comparison between simulated and measured solid deposition is difficult due to the absent of measurement data, the estimated values using MOUSE model is reliable and can be used to develop estimation equations for solid sediment in Gunja drainage basin.

키워드

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