Soils Sealed by Technic Hard Materials in Urban and Traffic Areas -- Soils constructed on Ski Slopes -- Soils on River Embankments -- Soils in Historical Urban Parks -- Soils on Coastal Berms for Reproducing the Coastal Forests Damaged by the Mega-tsunami -- Soils Filled in Swamplands behind Coastal Sand Dunes to Prevent Coastal Disaster -- Geotechnical Issues for Developing Coastal Waste-Landf…