| 摘要 |
PURPOSE:To obtain the titled substructure having improved workability in the formation of a base of a construction such as vinyl green house, by fixing an arm crosswise to a long rod having a thrusting part at one end and a knocking part at the other end and fixing an attaching part to the other end of the long rod. CONSTITUTION:A hole G1 having a depth nearly equal to the length between an attaching part 3 and an arm part 2 is bored in the ground. A knocking part 11 of a long rod 1 is knocked with a hammer, etc., to drive the thrusting part 10 into the ground. The hole G1 is filled with earth and sand, concrete, etc., and the built-in substructure is embedded in the ground. A post 40 of a vinyl green house, etc., is fixed by screwing a nut to a bolt inserted into a bolt-insertion hole 30 of an attaching part 3 to form a substructure of a vinyl green house, etc.
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