| 摘要 |
PROBLEM TO BE SOLVED: To provide a large-sized retaining wall block having sufficient strength while being a large size, restraining cost of a manufacturing form, and capable of reducing a storage space.SOLUTION: A large-sized retaining wall block on the present invention comprises a rectangular front wall having a decorative surface on a front face, a rectangular rear wall oppositely arranged to the front wall and a connection part provided between the front wall and the rear wall and mutually connecting the front wall and the rear wall, and the front wall, the rear wall and the connection part are provided with a joining part threadably attachable by a bolt, and the connection part is composed of plate-like two connection materials, and the connection materials are installed on both left-right sides of the front wall and the rear wall with the plane direction of the connection materials as the vertical direction, and front-rear end surfaces of the connection materials are constituted so as to be connected by abutting on the front wall and the rear wall by the joining part, and a part except for the joining part is formed of concrete. |
