How to install large concrete blocks

摘要

PROBLEM TO BE SOLVED: To form a retaining wall, a drainage ditch and a drainage tunnel, etc., by simply, efficiently and accurately arraying large concrete blocks (a) in place with each other neighboring retaining wall faces to be flush and high as predetermined and not to be slidable forward and backward. SOLUTION: Channel materials 2 or angular materials 3 have the lower parts embedded in a foundation 1 where large concrete blocks (a) are arrayed and the upper parts protruded from the foundation 1 to provide engagement strips (b) in the direction of arraying the concrete blocks (a) on the foundation 1. Lock materials (c) locked to the engagement strips (b) are vertically provided on the right and left sides of the lower faces of the concrete blocks (a) and engaged with the engagement strips (b) in series or via curing agent 4 so that the concrete blocks (a) are not slidable forward and backward.