The subject innovation relates to a porous concrete duplex eocho block for restoring marine ecology applied to coastal waters, the outer surface of the block in a trapezoidal shape is in a porous concrete porosity of 15 to 35%, the interior of the block is in plain concrete consists of a multi-layered form, each side of said block is at least two through holes formed in right and left or upper and lower, top and bottom respectively, a vertical through-hole is formed in that the assembly as a quadrangular pyramid or a hexagonal pyramid shape so that the fish habitat formed therein It characterized. In addition, each of the blocks of the is characterized in that is formed with a plurality of connectors to be coupled with the adjacent block, and characterized in that the assembly by fastening the connecting bolts to the end connections, blocks the base is further formed in the lower amount of each of the blocks of .; Accordingly, it is effective to install a porous concrete duplex eocho block according to the present invention in the coastal waters provide eocho & Associates structure that can respond to the rapidly changing marine environment, divided the wall of the block portion porous concrete portions and normal concrete thereby forming a multi-layer structure, porous concrete, which forms a large amount of continuous pores and a large specific surface area inside the concrete itself is the natural food chain with implantation and formatting abilities of algae and marine micro-organisms and habitat of small animals provide the growth activation early restoration effect and wijip of fish (蝟 集) effect is excellent, and general concrete of the marine environment by may have the advantage of improving the structural stability and durability of the marine block. Therefore, multi-layer construction of the block can satisfy the structural and functional stability, as well as to secure marine environment restoration and activation as a marine structure at the same time. The block each block of the polyhedron Panel (trapezoidal shape) of each produced after assembly using a plurality of connectors and the connection bolt by quality obtained through the specialization of the pre-made and detail the process of block panels and due to the modular structure when making to simplify the construction of large production and a cost-effectiveness.
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