STABILIZATION OF SANDY BEACH AND CLEANING METHOD OF SEAWATER

摘要

PROBLEM TO BE SOLVED: To contrive stabilization of a sandy beach and cleaning of seawater.;SOLUTION: A drainage layer 2 from a sandy beach 1 into the sea is provided in the sandy beach 1 of a seashore. The drainage layer 2 is formed to connect drainage blocks 3, 3a by permeable concrete or combination of the permeable concrete and ordinary concrete. Seawater creeping on the beach to be permeated into sands naturally drains from the drainage layer 2 to an offshore side. Thereby erosion in the neighborhood of an edge-of-water line a due to a stormy weather is reduced, and accumulation of sands in the neighborhood thereof is accelerated in a quiet time. In addition, seawater is cleaned by the drainage layer 2 to be returned to the sea.;COPYRIGHT: (C)2003,JPO