| 摘要 |
PROBLEM TO BE SOLVED: To provide a stack block capable of forming a relief pattern of various shapes with good face precision on a retaining wall face at a low form cost. SOLUTION: This stack block is provided with a brace side block 4 molded with compressed concrete and having a nearly constant horizontal cross sectional shape in the vertical direction, a front block 5 molded with casting concrete and having a relief pattern on the surface, and a coupling pair connecting the front face of the brace side block 4 and the back face of the front block 5. As a preferable structure, protruded sides 6 are provided on the sides of the front plate 1 of the brace side block 4, vertical coupling grooves 8 are provided on the back sides of the right and left sides of the front block 5, and the protruded sides 6 are coupled with the coupling grooves 8. The front block 5 is formed into a thin plate shape, and the brace side block 4 is made large. The brace side block 4 can be molded with few forms, and the overall form cost can be sharply reduced.
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