| 摘要 |
PROBLEM TO BE SOLVED: To improve a scene of concrete skin, etc., of a reinforced earth wall method by arranging a large number of PC blocks. SOLUTION: In a thick cross-shaped PC block 1 seen head-on by monolithically projecting joint sections 3 to the central parts of both right and left sides of a square main body 2 directed outward of the right and left in the front, unevennesses are formed in the fronts of the joint sections 3. The fronts of the joint sections 3 are set in positions lower than the front of the main body 2, and it is so constituted that a joint section between both right and left PC blocks to be arranged makes a groove.
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