| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for preventing reclamation material on an artificially-developed seashore from being effluented by ocean waves or tidal current, that can provide a suitable environment for growth of benthos, and is advantageous in cost. SOLUTION: The method for preventing effluence of a reclamation material 2 on seashore 3 includes placing two or more submerged breakwaters 5 toward offshore spacing from each other at an interval of less than a designed offshore wave, on a ground of the seashore formed by developing the reclamation material 2 on an original ground 1, or on the reclamation material. The reclamation material is formed of one or more of sand, silt, and clay. The submerged breakwater 5 is formed of one or more of stone material, concrete material, brick material, and artificial solidification material using a dredge soil. Moreover, the submerged breakwater 5 is a trapezoidal shape in its cross-section, and includes a bottom-sediment permeation-preventing portion in its core. COPYRIGHT: (C)2007,JPO&INPIT
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