FISH NEST GABION AND ITS INSTALLATION METHOD

摘要

PROBLEM TO BE SOLVED: To solve problems in conventional technology wherein there is a defect of providing neither a retreat place nor a place for protected growing of fish because a passage provided with much trouble is buried with slurry if an earth retaining frame is installed on foot protection, the river bottom, or the like, and further it is difficult to fill inside filling stones, particularly to support from below in the case of a tubular or cylindrical pipe body or net body, and there is a possibility of losing stability to worsen the whole balance or to damage the pipe body or net body if the way of filling is not good.;SOLUTION: This fish net gabion 1 is constituted by building a cylindrical or elliptic cylindrical gabion body inside to pass through laterally or longitudinally, supporting a part of at least the lower side face of the gabion body by a stone product having a recessed circular arc surface, and filling the filling stones such as stone end pieces in a remaining void space in the gabion.;COPYRIGHT: (C)2005,JPO&NCIPI