Mar 26, 2024
Japan's Massive Underground Flood Tunnels
The G-Cans is an underground water infrastructure project in Kasukabe, Japan. Its main purpose is to prevent flooding during the typhoon season, it is in use about seven times a year. It consists of five concrete containment silos with heights of 65m and diameters of 32m, connected by 6.4 kilometres of tunnels, 50m below the surface. There are also large water tanks (25.4x177x78 metres) and 59…
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