| 摘要 |
PROBLEM TO BE SOLVED: To break up waves on a beach and produce the beach by utilizing its natural force. SOLUTION: Latticelike frame wave breaking spreading materials (a) forming latticelike squares having required size by a material having resistance against shearing force and tensile resistance force such as a steel material or reinforced concrete are continuously spread along the vicinity of a beach line of a beach to be nourished. Next, a wave breaking material 7 such as a stone or a block is put on the front and rear wave breaking spreading materials to engage a lower part of the stone or the block with the latticelike squares of the wave breaking spreading material (a) tightly by waves, and a wave breaking structure B consisting of the wave breaking spreading materials (a) and the stone or block engaged therewith is automatically sunk due to washing and digging actions by means of waves to constitute the rigid wave breaking structure B. Sands carried by waves are deposited on a land side on a rear surface of the wave breaking structure B to produce a beach. |
