WALL SURFACE BLOCK STRUCTURE FOR PROTECTING BIOLOGICAL ENVIRONMENT IN PROTECTIVE WALL FOR RIVER, SAND, OR MOUNTAIN AREA

摘要

PURPOSE:To facilitate maintenance of biological environment and protection of small animals by eliminating a required number of unit parts, and installing repairing wall surface block bodies having a hollow part at the eliminated parts to be integrated with the existing protective wall or the like for repairing it. CONSTITUTION:A required number of unit block parts of an existing protective wall B for a river or a mountain area consisting of wall surface block bodies 10 are eliminated, and repairing wall surface block bodies 20 for repairing of a corresponding form to be block bodies 10 having a hollow part 22 having an opening part 24 are installed at the eliminated parts to be integrated with the protective wall B or the like to repair it. Nests are to be formed by river fishes at the hollow parts 22, or nests of birds or small animals are to be formed there. Discharge passages are provided connected with the hollow parts 22, so discharge of sand or water is facilitated, and a partition frame of grids or metal gauze is provided at the opening 24 for preventing insertion of hand, thereby small animals are protected from the foreign enemy.