Kansai International Airport Site Development Co., Ltd.
Izumisano City, Osaka Pref
Kansai International Airport is a man-made island reclaimed in the sea at a depth of 18 meters, near 5 km offshore, and intends to become Japan's first airport to operate 24 hours a day.
Marine SCP Method
This method improves the soft ground from the sea by using a special ship.