KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
권호 표지

Development of 2-D Flood Inundation Model for Dam Failure Analysis: I. Theory and Model Verification

댐 붕괴 해석을 위한 2차원 홍수범람모형의 개발: I. 이론 및 모형의 검증

Choi, Kyu-Hyun;Han, Kun-Yeun
최규현;한건연

  • Published : 2005.03.31

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Abstract

In this study, we developed a 2-D flood inundation model to evaluate the impact of a dam failure in a natural basin for flood. The mathematical formulation of suggested model incorporates 2-dimensional shallow water equations for flood inundation. For application of the developed model, the comparison with Preissmann method with 1-D dam failure and the simulation of overland flow on identically sloped cases in one and two directions are accomplished in this study. Also the numerical simulation of 2-D dam failure is accomplished in this study. The calculated results are compared with the experimental results and the established studies. It is found that the calculated results well corresponded with all cases.

본 연구에서는 댐 붕괴로 인한 제내지에서의 홍수범람 양상을 해석하기 위한 2차원 홍수범람모형을 개발하였다. 이를 위해서 범람홍수류에 대한 2차원 천수방정식에 대한 모형화가 수행되었다. 개발된 모형의 적용을 위해 1차원 댐 붕괴의 문제에 대한 Preissmann 기법과의 비교가 수행되었으며, 일방향 및 양방향 경사유역에 대한 지표류 모의가 수행되었다. 또한 2차원 댐 붕괴의 문제에 대한 모의를 수행하였으며, 계산결과는 실험치 및 기존의 연구결과와 비교하였고 각 경우 모두 실험치 및 기존 연구결과와 잘 일치하였다.

Keywords

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