배수지연을 고려한 논 지구의 범용 침수 모의 기법 개발
General Inundation Modeling of Paddy Field Districts Considering Drainage Delay
1
조회
0
다운로드
7
인용
0
참고문헌
키워드
초록
The objective of this study was to develop a general inundation modeling technique considering the effect of drainage delay in the paddy field districts. In most studies, farmland inundation simulations have been conducted using previously developed watershed models. However, the water cycle in thepaddy fields has a different structure from that of the general watershed, and the effect of the drainage delay should be considered. In this study, thedrainage delay algorithm was developed using water balance equation, and the inundation modeling was performed for inundation-prone paddy fieldslocated near Doowol stream. As a result, the depth of inundation was 43.1 cm and 45.2 cm, respectively, due to the 100-year and 200-year frequencyrainfall. With the operation of drainage pump (0.1 m3/s), inundation depths decreased by 5.8 cm and 6.0 cm, respectively, and inundation time reducedby 20 hours and 21 hours, respectively for the 100-year and 200-year frequency rainfall. The result showed that the general inundation modelingtechnique developed in this study could reflect the effect of drainage delay due to the rise of external water level and the flooding reduction effectby operation of drainage pump. The results of this study are expected to be useful to establish measures for damage caused by farmland inundation.
Abstract
The objective of this study was to develop a general inundation modeling technique considering the effect of drainage delay in the paddy field districts. In most studies, farmland inundation simulations have been conducted using previously developed watershed models. However, the water cycle in thepaddy fields has a different structure from that of the general watershed, and the effect of the drainage delay should be considered. In this study, thedrainage delay algorithm was developed using water balance equation, and the inundation modeling was performed for inundation-prone paddy fieldslocated near Doowol stream. As a result, the depth of inundation was 43.1 cm and 45.2 cm, respectively, due to the 100-year and 200-year frequencyrainfall. With the operation of drainage pump (0.1 m3/s), inundation depths decreased by 5.8 cm and 6.0 cm, respectively, and inundation time reducedby 20 hours and 21 hours, respectively for the 100-year and 200-year frequency rainfall. The result showed that the general inundation modelingtechnique developed in this study could reflect the effect of drainage delay due to the rise of external water level and the flooding reduction effectby operation of drainage pump. The results of this study are expected to be useful to establish measures for damage caused by farmland inundation.
참고문헌 (19)
- 은상규, "농경지 침수 피해 감소와 실시간 자료 수집을 위한모바일 기반 정보 시스템 설계", 농촌계획, 19(3), pp.1~12 (2013), 한국농촌계획학회[DOI]
- Master plan reports of Doowol stream, "Gimje-si", ~ (2013)
- Hwang, D. J., "Affecting discharge of flood water in paddy field from selecting rainfall with fixed and unfixed duration", Journal of Korean National Commite on Irrigation and Drainage, 19(1), pp.64~76 (2012)[DOI]
- 전상민, "HEC-RAS를 이용한 하천변 농경지의 1, 2차원 연계 침수 모의", 한국농공학회논문집, 60(5), pp.135~147 (2018), 한국농공학회[DOI]
- 전상민, "농업용 저수지 둑 높이기에 따른 홍수조절효과 분석", 한국농공학회논문집, 55(6), pp.57~68 (2013), 한국농공학회
- 강민구, "논 지구의 배수로 부정류 흐름 모의를 위한 모델링 시스템", 한국농공학회논문집, 56(2), pp.1~9 (2014), 한국농공학회
- 강민구, "2차원 유한체적 수치모형을 이용한 대구획 논의 배수특성 분석", 한국농공학회논문집, 46(3), pp.3~14 (2004), 한국농공학회
- 강민구, "2차원 유한체적 수치모형을 이용한 논의 지표관개 수리특성 분석", 한국농공학회논문집, 46(4), pp.3~11 (2004), 한국농공학회
- Kim, C. G., "Runoff hydrograph synthesis from small watersheds considering hydrological characteristics of irrigated rive paddies", Journal of the Korean Society of Agricultural Engineers, 42(6), pp.56~62 (2000)[DOI]
- A study on design standards of agricultural drainage, "Korea Rural Community Corporation", Ministry of Agriculture, Food and Rural Affairs, ~ (2012)
- 이경진, "지리 및 배수특성을 고려한 농경지 침수 취약성 지도 작성 연구 - 충청남도를 대상으로 -", 농촌계획, 21(2), pp.127~135 (2015), 한국농촌계획학회[DOI]
- Lee, H. J., "Estimation of farmland inundation probability based on temporal distribution of forecastedrainfall", Ms., pp.2019
- Hiroki Minakawa, "VARIABILITY IN INTENSITY OF HEAVY RAINFALL DUE TO CLIMATE CHANGE AND ITS IMPACT ON PADDY INUNDATION IN LOW-LYING AREAS OF JAPAN", Irrigation and Drainage, 62(5), pp.679~686 (2013), Wiley[DOI]
- Ministry of Land, Infrastructure, and Transport, "Guidelines for calculating the design floods", ~ (2012)
- Annual report of disaster 2017, "Ministry of the Interior and Safety", ~ (2018)
- Development of the paddy inundation damage simulation system for drainage improvement, "Park, S. W.", Ministry of Agriculture, Food and Rural Affairs, ~ (2003)
- 류정훈, "강우의 비정상성을 고려한 청미천 유역의 미래 침수특성 분석", 한국농공학회논문집, 59(1), pp.81~96 (2017), 한국농공학회
- 신샛별, "홍수위 해석을 위한 미측정 하천 단면 추정", 한국농공학회논문집, 58(5), pp.11~18 (2016), 한국농공학회
- US Army Corps of Engineers Hydrologic Engineering Center, "HEC-RAS hydraulic reference manual version 5.0", ~ (2016)