DEVELOPMENT OF THE NEW TYPE ARMOR BLOCK WITH THE EFFECTS OF WAVE ATTENUATIONS AND ECO-REEF FOR

Eco-reef concrete blocks have not only a characteristic for the wave force attenuations such as the wave shock-pressure, run-up and scouring the bed mound, but for the construction cost benefit to use an industrial scrape such as dredging mud or sand for the reef, just banking, and have a much contribution to the surrounding environment ecology. The block has been developed, with the mentioned merits, is a box-type and has some open slits on the walls.The paper mentions the hydraulics characteristics of the artificial reef by the eco-reef concrete blocks, for the wave reflections, transmissions, set-up behind the reef, and the stability of the block to compare with the concrete armor unit or the rubble stones. Further, after banking a small mound such as the same rubble mounds behind the artificial reef with the eco-reef blocks, the wave transmission are measured and analyzed the efficiency for the wave transmissions attenuation.