| 摘要 |
PROBLEM TO BE SOLVED: To contrive the closure of a revetment opening part by slidably attaching the rear part of a strip-like cover netting extended frontward from the lower face of the front part of a bottom net through the lower part of a front side net on the bottom net. SOLUTION: In the staircase part of a revetment juxtaposing a gabion 7 at stages, a strip-like netting cover 3 is extended frontward through the lower part of a front side netting 2 from the lower face of the front part of the bottom netting 1 of an upper stage gabion 7, and the staircase part is closed to prevent the outflow of rubble stones or the like. Next, the netting 3 is formed in the form of a long strip in the direction of the netting 2, and the length is substantially the same as the netting 2 or slightly longer than the netting 2. Next, the rear part of the netting 3 is overlapped on the lower part of the front face of the netting 1, upper and lower substantially parallel netting wires 4 are inserted in a common spiral annulus 5 to be loosely attached, and the netting 3 can be slid in before and behind, right and left and obliquely. Thereby even on the curved part of a revetment, the opening of a staircase part can be surely closed.
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