| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe pillow for piping capable of preventing the buckling of a reinforcement rib even when the weight of the buried soil and the fluid in a pipe material for piping is intensively acted on the reinforcement rib between a pipe material supporting part and a pipe pillow main body for piping. SOLUTION: This pipe pillow for piping is constituted by mounting the plurality of reinforcement ribs 15 between upper and lower long sides of the pipe pillow main body 11 for piping having the rectangular frame shape, for connecting upper and lower long sides in a state that triangles are alternately arranged in an inverted state in the lateral direction orthogonal to the laying direction of the pipe material M for piping. The reinforcement ribs are respectively intersected to each other at an approximately intermediate position in the vertical direction in a state that the triangles inverted to each other are overlapped. Further the reinforcement ribs positioned between the pipe material supporting part 12 and an opposite face of the pipe pillow main body for piping opposite to the pipe material supporting part 12, are connected in a state of being inclined approximately at an angle of 60°and at an angle of 120°in the lateral direction with respect to the opposite face of the pipe pillar main body for piping, so that approximately regular triangles are alternately inversely continued between the pipe material supporting part and the opposite face of the pipe pillow main body for piping. COPYRIGHT: (C)2005,JPO&NCIPI
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