Author(s): Taekmun Jeong; Soodeok Hwang; Dongyeop Lee; Jongpyo Park And Yeoeun Lee
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Keywords: Flood disaster prevention Design standards Urban flooding Inland inundation Underground infrastructure Deep storm water tunnel
Abstract: The frequency of urban flooding caused by localized heavy rainfall has sharply increased in recent years due to the impacts of climate change, resulting in significant inland inundation and damage to urban watersheds. To address this issue, various flood control measures have been proposed, including the construction and expansion of stormwater pumping stations, improvements to sewer systems, and the installation of backflow prevention facilities. However, the unique characteristics of urban watersheds, such as limited land availability and construction constraints, present significant challenges, making it difficult to practically implement these measures. To overcome these obstacles, the government has initiated programs such as the "Disaster Management System Improvement Plan in Response to Climate Change (Ministry of Public Administration and Security of South Korea, 2023) " and the "Urban Flooding and River Flood Prevention Measures (Ministry of Environment of South Korea, 2022). " These initiatives focus on expanding disaster prevention infrastructure that accounts for climate change. Despite these efforts, there remains a significant gap in establishing adequate standards for determining flood control volume allocation in large-scale underground infrastructure designed to mitigate urban flooding. This study addresses this gap by developing and evaluating an urban flood model, which provides guidelines for determining the inflow and storage capacity requirements for deep storm water tunnels.
Year: 2025