| 摘要 |
PROBLEM TO BE SOLVED: To provide a concrete molded body which facilitates horizontal and vertical minute adjustment of an L-shaped retaining wall or a box culvert only by rotating male screws to adjust the height of the same protruding from a bottom surface of a bottom plate, to thereby drastically improve the workability thereof. SOLUTION: According to the structure of the concrete molded body, a plurality of female screws 9A, 9C are embedded in the bottom plate 2 set on foundation concrete 4 serving as a mounting surface of the L-shaped retaining wall 1, so as to vertically penetrate the bottom plate 2, at locations longitudinally and laterally separated from each other, and the male screws 11 are screwed into the female screws 9A, 9C, followed by rotating the male screws 11 to adjust the length of the male screws 11 protruding from the bottom surface of the bottom plate 2. In this manner, vertical and horizontal inclinations of the L-shaped retaining wall 1 can be adjusted. COPYRIGHT: (C)2009,JPO&INPIT
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