PREDICTION OF UNDERGROUND TUNNEL INUNDATION PROCESS ASSUMING A LARGE-SCALE FLOOD

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  • 大規模水害時を想定した地下鉄トンネル内の浸水拡大プロセスの予測

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<p> In recent years, global climate change due to global warming has become remarkable, and one of the places where the most serious damage is considered to occur in the situation where record heavy rains occur frequently is the underground space.In particular, the subway that spreads out in central Tokyo has many users, and there is an urgent need to take measures against inundation.In this paper, we prepared the case where the external force is only rainfall and the case where the maximum possible case is prepared, and analyzed inundation risk in the target area centering on the central part of Tokyo.In addition, we investigated the amount of inflow water flowing from the road on the ground through the connecting point of the subway station and how it behaves in the subway tunnel, and clarified the inundation expansion process for each line according to each external force condition.</p>

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