CAVITY STRUCTURE FOR DRAINAGE OF WET GROUND, AND METHOD FOR PROMOTING DRAINAGE OF LAWN SURFACE BY USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a cavity structure for drainage of wet ground, which can efficiently promote drainage of a lawn surface, and a method for promoting the drainage of the lawn surface by using the cavity structure.;SOLUTION: The cavity structure for the drainage includes a cavity which is vertically formed from the lawn surface, a stopper which is mounted in such a manner as to block a cross section, in the cavity in a descent position at a predetermined distance from an opening edge of the cavity, and a water-permeable layer which is formed in the upper cavity from the stopper. Particularly, a fixed space area is provided on the downside of the stopper. In the water-permeable layer, soil for cultivation is properly mixed into sediment. The stopper has a self-supporting stationary structure, and its member is formed by properly combining a natural material, a resin material, etc. together. In a method for constructing the structure, after the cavity is formed in the lawn surface in a treatment target area by vertically drilling a hole in such a manner that lawn roots pass through it, the stopper is mounted in such a manner as to block the cross section, in the cavity in the decent position at the predetermined distance; and finally, the water-permeable layer is formed in the upper cavity from the stopper.;COPYRIGHT: (C)2010,JPO&INPIT