| 摘要 |
PROBLEM TO BE SOLVED: To ensure an esy execution of construction even in the case of a curved slope surface in a slope surface frame whose sectional side has an substantially L shape and where a standing board and a bottom board made of thin plate with rigidity cross each other at a specified angle by forming it flat without no protruding member such as a side plate, reinforcing crossing plates, bent edge at least at an edge on one side of the bottom board. SOLUTION: A rectangular metal net of zinc plated steel wire is bent at right angles almost at a center to form an L shaped surface frame body 1 composed of a standing surface 11 and a bottom surface 12. At a side edge 2 on one side of the body 1, a rectangular side surface 13 is additionally formed between the edge 2 of the standing surface 11 and the edge 2 of the bottom surface 12 while it is not provided on the opposite side. In juxtaposing the frames 1 on a banking base having a protrusive curved surface, the frames 1 are layed along a planned banking line. Then, under the state that the side edge 2 of the standing surface 11 having no side surface of the adjacent surface frame 1 is abutted against the side edge of the standing surface 11 having the side surface 13 of the corresponding surface frame 1, the side end thereof is partially superposed on the bottom surface on the side end side thereof having no side surface.
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