| 摘要 |
PURPOSE: The vegetation-bank protection execution materials and the works are provided, which prevents a bank loss by tractive forces and activates river vegetation and provides fishes' habitat abundantly and protects an aquatic ecosystem. CONSTITUTION: The vegetation-bank protection works comprises the steps of; laying an upper bearing beam (1), which a bolt (7) fixing a rope is planted on the plate surface at regular intervals, on the top end of a bank; laying a L-shaped lower bearing beam (2), which a bolt (7) fixing a rope is planted on the upper side of a wall (2b), on the lower end of a bank; laying a strutted beam (3) planting a bolt (7) on the upper side of a wall (2b), which stands on the upper-middle side of a slab (2a) between an upper bearing beam (1) and a lower bearing beam (2); laying a vegetation mat (8) on an upper bearing beam (1), a lower bearing beam (2) and a strutted beam (3); covering a vegetation mat with a wire net (10); fixing a bolt boring (4a) of a rope support (4) to a bolt of a strutted beam (3); installing a rope (6) between a bolt projected above a rope support and a bolt of other adjacent strutted beam; covering with earth after installing a rope (6) between a bolt of an upper bearing beam (1) and a bolt of a lower bearing beam (2); building a wire cylinder (13) below a lower bearing beam (2).
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