| 摘要 |
PROBLEM TO BE SOLVED: To enhance strength by a new structure of a frame (a wire net) and trapezoidal assembling used for a earth-collapse fall preventive measure in a steep slope, and improve the working efficiency of finish. SOLUTION: A trapezoidal structure is formed by combining a frame having a projecting part of drawing signs 4 and 5 and a frame of 6, and is finished by concrete or mortar, and arrangement of the frame is formed in a zigzag grating shape as a drawing 2. Dripping-out of the concrete or the mortar from the frame is reduced by forming a shape of the frame in a trapezoidal shape so that the working efficiency of the finish is improved. Since most of steel wires of the frame (the wire net) are integrated by entering the concrete or the mortar, sufficient strength can be obtained without arranging reinforcements. A load from a slope face can be dispersively transmitted to a vertical frame by forming the arrangement of the frame in the zigzag grating shape.
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