Numerical Simulation for Reducing the Flood Damage of Green Park Using MIKE URBAN

Abstract

In this study, to resolve flood damage in flood-prone areas around Incheon Bridge landfill, numerical analysis was performed according to change of coefficient of runoff considering underground rainfall storage in surrounding parks and facilities to reduce non-point source pollutants. Use of rainfall retention facility to improve urban flooding reduced peak flow and effectively prevented flooding in the subject areas. In the result according to change of coefficient of runoff considering facilities to reduce non-point source pollutants, control of initial rainfall led to reduce peak water level and secure delay time. Based on the study result, to properly install underground retention storage and apply coefficient of runoff according to facilities to reduce non-point source pollutants within the subject areas, providing accuracy of various parameters necessary for future analysis and measurement data will help design effective multi-functional parks with minimized flood damage and prepare measures to prevent disaster.