Structural member for rainwater storage and penetration facility, structure for rainwater storage and penetration facility, and rainwater storage and penetration facility using these

摘要

The present invention provides a structural member, a structural body, and a rainwater storage and penetration facility using these, which have excellent mechanical strength and can improve construction efficiency. The face plate portion constituting the structural member according to the present invention has most of the plate surface closed and has two sides facing each other in the width direction of the plate surface. The convex fitting portion extends along the height direction orthogonal to the width direction on each of the two sides. The concave fitting portion extends along the height direction at the center in the width direction. FIG.