| 摘要 |
PURPOSE:To prevent collapse of a face of slope and to perform vegetation, by a method wherein a number of holes for vegetation are bored in a mortar- covered layer at intervals with a jet of water, and a groove for vegetation is further formed in an underlaying ground with a jet of water. CONSTITUTION:A work to form holes 3 and grooves 4 for vegetation with a jet of water is effected through control of an injection nozzle connected to a power-operated pump through a hose. A number of holes 3 for vegetation are bored at intervals in a mortar-covered layer 2, formed by spraying mortar on a face 1 of slope, with a jet of water. Subsequent to the formation of the holes 3, the grooves 4 for vegetation are provided, the interior of the holes 3 and the grooves 4 is filled with a vegetation material 5 to vegetate plants 6. This enables holes to be bored in given spots in the mortar-covered layer without damaging other part, and also permits given grooves for vegetation to be efficiently formed in an underlaying ground. |
