Side slope surface reinforcement structure and board member are used for side slope surface reinforcements

摘要

PROBLEM TO BE SOLVED: To provide a slope surface reinforcement structure and a plate member for slope surface reinforcement that reduce an impact of drainage on appearance.SOLUTION: A slope surface reinforcement structure includes a plurality of plate members 11 arranged on a slope surface 32, a drainage material 42 installed between a rear surface of the plate member 11 and the slope surface 32, and a back-fill material installed between the rear surface of the plate member 11 and the slope surface 32, the back-fill material having a lower permeability than the drainage material 42. The plate member 11 has a drain part 17 on a side edge part, for forming a drain hole 47 that drains moisture contained in the drainage material 42 to a front surface side of the plate member 11. The drain part 17 includes a groove part 17b extending away from the rear surface of the plate member 11 toward the front surface side, away from a top edge and while being inclined, and a thin plate part 17a having a length in a thickness direction shorter than the groove part 17b and blocking an opening on a front surface side of the groove part 17b. The drain hole 47 is formed by two adjacent groove parts 17b, when the two plate members 11 are lined up in a direction intersecting a vertical direction V, after removing the thin plate part 17a.SELECTED DRAWING: Figure 6