2001 Volume 16 Pages 247-250
In recent years, river revetment improvement work designed to create river works for natural conservation has been implemented in various parts of the country, in response to growing public consciousness of environmental conservation and to the revision of the River Law. The block mat system, which can be used to restore a site's vegetation by creating an earth cover, is a suitable method for constructing revetments on quasi-natural rivers. The “Basic Guidelines for Disaster Restoration to Conserve Beautiful Mountains and Rivers” designates it as a quasi-natural river revetment restoration method that can be applied to rivers with a flow velocity of up to 4m/sec. When it is actually applied, the method should be studied based on verification of the flow stability of the revetment blocks. This report presents an example of its application to river works for natural conservation performed after verifying the flow stability using a “sliding-colony” model and a “peeling” model.
