To provide a method for installing many algae reef/fish reef-blocks on the sea bed, as capable of easily translocating them in the sea bed with divers, and also arranging many algae reef/fish reef blocks in lengthwise and breadthwise directions on the sea bed so as not to be moved.
This algae reef/fish reef is equipped with joining bodies 3 for joining in a plurality of algae reef/fish reef blocks 1 with in the plurality of the algae reef/fish reef blocks 1. The algae reef/fish reef block 1 is formed as a block form by porous concrete, and fixing rings 2 are fixed at its periphery. The joining body 3 is equipped with joining rings 4 to be joined with the fixing rings 2 of the algae reef/fishing reef blocks 1, at its both ends. By joining the joining rings 4 at the both ends with the fixing rings 2 of the algae reef/fish reef blocks 1, joining the adjacent algae reef/fish reef blocks 1 by a prescribed distance while making them in a state of capable of moving in up and down direction relatively. The algae reef/fish reef is provided by joining the algae reef/fish reef blocks 1 arranged along their outer periphery as a closed ring state by the joining bodies 3, also joining the algae reef/fish reef blocks 1 arranged at the inside by the joining bodies 3 in a prescribed distance, and further, joining with the outer peripheral algae reef/fish reef blocks 1.
OKUDA YOSHIHIKO
MASUDA SHIGEAKI
MASUDA SHIGEAKI
| JPH0378779U | 1991-08-09 | |||
| JPS60156335A | 1985-08-16 | |||
| JPS59178057U | 1984-11-28 | |||
| JP2002317425A | 2002-10-31 | |||
| JPH08209655A | 1996-08-13 |
Toshisu Koji