| 简介 |
PROBLEM TO BE SOLVED : To reduce to the utmost a slope ground excavation amount required in constructing an earth-retaining retaining wall.
SOLUTION : A portion to construct the earth-retaining retaining wall 1 is suitably excavated, cylindrical post materials 4 are installed at spaces in the slope width direction, a wall surface material 7 is stretched between the adjacent cylindrical post materials 4, the interiors of the cylindrical post materials 4 are filled with concrete 5 to construct a pillar body 6, and back filling of sediment 8 is performed for the space among the wall surface material 7, the pillar body 6, and the slope to construct the earth-retaining retaining wall 1. As the cylindrical post material 4, used is a cylindrical body 4, which is not cylindrical as a whole, but the lower back of which is cut out to form a lower back cutout cylindrical post material 4 (for example, the cylindrical post material 4 formed by connecting a cylindrical body 4a on a semicircular body 4b). In excavating the slope ground, the slope ground corresponding to the lower back cutout part of the cylindrical post material 4 is not excavated and left undone (the remaining part is indicated by a reference number 3b). Especially in the case where the lower part of the slope 2 has a sharp gradient and a bedrock 2b is located in a shallow position, the excavation amount of the bedrock part hard to excavate will be small, so that the excavation work can be reduced.
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