SUBWAY INUNDATION BY PLUVIAL FLOODING CONSIDERING THE PLANNING LINE

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  • 計画中の新路線を考慮した内水氾濫時の地下鉄浸水に関する検討

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 There are so many subway lines and stations in lowland cities such as Tokyo, Nagoya and Osaka, Japan. In this paper, subway inundation in the center area of Osaka is investigated by using a numerical model including underground mall, subway stations and fifteen subway lines. From calculation results of inundation by pluvial flooding, it is found that subway inundation quickly spreads through subway tunnels. On the new line Naniwasuji line, it was found that the flooding spread from the Umeda area towards Shin-Osaka station. We found out that flooding occurs around Juusou stations and Shinosaka station in Ono treatment area.

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