Patent ID: 8734060
Filing Date: 2014-05-27
Classification: E02D

Abstract:
1. A double-wall structure comprising: two back-to-back wall sections each comprising successive courses of wall blocks dry-stacked one atop another with each succeeding course set back relative to the immediately preceding course so that the two back-to-back wall sections converge upwardly towards one another; and a foundation comprising one or more courses of base blocks beneath each wall section of wall blocks and on which the wall sections of wall blocks are erected, the base blocks having a greater front-to-rear depth than that of the wall blocks; wherein the lowermost course of wall blocks in each wall section is set back relative to the uppermost course of base blocks on which the lowermost course of wall blocks is erected, and wherein the setback distance between successive courses of wall blocks is the same, and the setback distance between the lowermost course of wall blocks and the uppermost course of base blocks is the same as that between successive courses of wall blocks.