Development of Advanced Inland-river System for Urban Stream

1 MS Student, Department of Civil, Environmental and Architectural Engineering, Korea University
2 Ph.D Student, Department of Civil, Environmental and Architectural Engineering, Korea University
3 Professor, School of Civil, Environmental and Architectural Engineering, Korea University
*Corresponding author: jaykim@korea.ac.kr

Abstract

Urbanization has increased population and property inside the urban area and runoff volumes. In addition, the number of short time concentrated local rainfall is increased by climate change. For many of these reasons, flooding in urban areas has occurred more than before, the total damage of urban flood also increases. Structural measures such as pump station, sewer network and reservoir directly reduce the risk of flood through structure. However, structural measures have limit that needs a lot of spaces and construction cost to improve flood mitigation capacity, non-structural measures become important study topic to construct efficient urban drainage system without additional structural installation. In this study, new inland-river system considering the water level of vulnerable point and predicted urban stream inflow is proposed as non-structural measures. The proposed inland-river system shows the flood mitigation effect of 42.07% when compared with the current urban drainage system at the 2010 rainfall data recording the historical flooding damage in the past.

Keywords
Multi-Dimensional Flood Damage Analysis (MD-FDA); Artificial Neural Network; Surrogate Model

Acknowledgment
This work was supported by a grant from The National Research Foundation (NRF) of Korea, funded by the Korean government (MSIP) (No. 2016R1A2A1A05005306).