The natural stone plate and the strengthening board for pavement which are used for permeable pavement manner and the permeable pavement manner which use the natural stone plate

摘要

PPROBLEM TO BE SOLVED: To obtain a permeable pavement method using a natural stone plate which can easily be laid and economically installed wherein rainwater can be efficiently introduced to the undersurface of the natural stone plate and can be permeated into the underground through a sand cushion layer even if the natural stone plate is used for the pavement; and to provide also a natural stone plate and a reinforcing plate for pavement used for the permeable pavement method. PSOLUTION: The permeable pavement method using the natural stone plate is constituted by: a base-course formation process, wherein a water-permeable sheet is laid on the top of a base course layer body after the base course layer body is formed, and a sand cushion layer is formed thereon; and a process of laying the natural stone plate, wherein, while a longitudinal joint parts and lateral joint parts can be formed in a lattice shape at the top of the sand cushion layer of the base course after the base course formation process, a plurality of natural stone plates having a plurality of water-introducing grooves on the undersurface and also forming an intake port deeper than the water-introducing groove at the end of at least a part of the water-introducing groove are laid, and the reinforcing plate for pavement with a longitudinal joint plate and a lateral joint plate positioned at a part for not blocking the intake port of the natural stone plate is arranged at the corner. PCOPYRIGHT: (C)2011,JPO&INPIT