| 摘要 |
PURPOSE:To perform netting work for covering at high lands or dangerous sloped ground by a method in which weights with couplers are provided on the peripheral edges of a net, and the net is made to cover on sloped ground by extending it. CONSTITUTION:Tetra-anchors 2 are attached at adequate intervals to the whole periphery of a metal net 1. A hook 4 to be turned by a motor 3 is hung down from a carrier, e.g., helicopter, the central portion of the net 1 is coupled with the hook 4, and the net 1 is carried to a construction place. The motor 3 is turned above the construction place, and the hook 4 is uncoupled from the metal net 1. Greens-planting materials are spread over the net 1, an adhesive is sprayed onto the materials, and the net 1 is bonded and fixed to rocks, etc. |
