Proper design, material selection are crucial for effective drainage
Clear water in wells and streams is additional proof that topsoil captures silt particles. If silt stayed in groundwater as ...
朝日新聞社3 年
Foundation flaw in development eyed as factor in Atami landslide
Insufficient drainage in the foundation of material used to fill in a valley high above Atami may have helped trigger a massive landslide on July 3 that left at least four people dead and another ...