| 摘要 |
PURPOSE:To reliably drain retarding water gathering at the interior of a face of slope, by a method wherein a bag body having no water permeability only at the under surface thereof is filled, and the water conveying bags are buried in a groove excavated in the face of a slope in a manner that both ends are abutted on the each other. CONSTITUTION:With the side, where a sheet 2 is stuck to the bag, facing down, a water conveying bag 7 is disposed in a groove 16, and the opening 5 side is directed to the upper part of a slope. A second water conveying bag 7 has its closed end being inserted into an opening 5 of a precedingly disposed water conveying bag 7, and is disposed in a manner that it is piled on the sheet 2. The sheets 2 of the water conveying bags 7 are continuously connected to form a long drain canal, spraying is applied on the face of slope 18 to form a layer of earth 21 brought from another place and mixed in the soil, and lawn 20 is planted. This prevents the occurrence of choking and enables the water conveying bags to be easily aligned depending upon a change in a drain gradient. |
