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2025 Vol.12, Issue 2 Preview Page

Original Article

Characteristics of Total Sediment Load at Yeoju Station in Han-gang River

한강 여주대교 지점에서 총유사량 특성

Do Eon Kim1
,
Sung-Uk Choi2*
김 도언1
,
최 성욱2*
1Master Course, Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Korea
2Professor, Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Korea
1연세대학교 건설환경공학과 석사과정
2연세대학교 공과대학 건설환경공학과 교수
*Corresponding Author
30 June 2025. pp. 69-79
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Abstract

In Korea, a significant amount of sediment transport occurs in the rivers only during flood seasons. Sediment transport in the river affects the change in geomorphology and ecosystem of the river. Therefore, accurate prediction of sediment transport is very important to the management of the river in the era of climate change. This study was performed to investigate the hydraulic characteristics of sediment load using the measured data at Yeoju Station in the Han-gang River. First, the annual change of the bed sediment and the impact of the flood on the distribution of bed sediment are investigated. Then, the relationship between the total sediment load and discharge is established. It is found that the total sediment load increases proportionally to the 2.189 power of the discharge, regardless of the year. Lastly, five total sediment load formulas, widely used currently, are applied, and the results are compared with the measured data. The present study will be useful in predicting the total sediment load in rivers in Korea.

Keywords
Bed sediment
Measured sediment load
Sediment transport
Total load formula
Total sediment load

우리나라 하천에서 유사이송은 주로 장마철 홍수기에 발생하며, 하천지형학적 변화와 생태계에 영향을 미친다. 따라서 기후변화 시대에 유사량의 정확한 예측은 하천관리에 매우 필수적이다. 본 연구는 우리나라 한강의 여주 지점에서 측정된 유사량 자료를 이용하여 유사량의 수리 특성을 분석하기 위하여 수행하였다. 먼저, 하상토 분포의 경년 변화와 홍수가 하상토 분포에 미치는 영향을 살펴보았다. 그리고 측정자료를 이용하여 유량과 총유사량과의 관계를 구축하였다. 특정한 해에 상관없이 총유사량은 유량의 2.189승에 비례하여 증가하는 것으로 나타났다. 마지막으로 기존에 널리 사용되는 5개의 총유사량 공식을 적용하여 측정자료와 비교하였다. 이 연구는 향후 우리나라 하천에서 총유사량을 예측하는데 도움이 될 것으로 판단된다.

키워드
하상토
측정유사량
유사이송
총유사량 공식
총유사량
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Information
  • Publisher :Korean Society of Ecology and Infrastructure Engineering
  • Publisher(Ko) :응용생태공학회
  • Journal Title :Ecology and Resilient Infrastructure
  • Journal Title(Ko) :응용생태공학회 논문집
  • Volume : 12
  • No :2
  • Pages :69-79
  • Received Date : 2025-04-02
  • Revised Date : 2025-05-27
  • Accepted Date : 2025-06-13
  • DOI :https://doi.org/10.17820/eri.2025.12.2.069
Journal Informaiton Ecology and Resilient Infrastructure Ecology and Resilient Infrastructure
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