CONCRETE BLOCK FOR REVETMENT AND REVETMENT MADE OF CONCRETE BLOCK

摘要

PROBLEM TO BE SOLVED: To provide concrete blocks for a revetment with which a stepwise revetment and a groin can be simultaneously constructed and a revetment having a promoting effect of familiarity with water, constituted of the concrete blocks. SOLUTION: In a plurality of concrete blocks 2, 3 for a revetment provided with extended parts 22, 23 continuously stretched outward at a rectangular board base and one side edge of the base, the extended part of the revetment concrete blocks positioned at the lower stage and the extended part of the revetment concrete blocks positioned at the upper stage are arranged to coincide with a nearly same straight line and the base of the upper stage blocks is shifted by a specified distance to the opposite side against the extended direction of the extended parts 22, 23 against the base of the lower stage blocks and the blocks are stacked in multiple stages by turns. And a step Y is constituted by the bases of these concrete blocks stacked by turns in a multiple stages and groin wants A, B, C extending to the vertical direction of the step Y is constituted of respective extended parts 22, 23.