| 摘要 |
PROBLEM TO BE SOLVED: To provide a marking pile K which facilitates driving the pile 1 into the ground 30, hard to slip out, is simply structured and can maintain high strength of the pile body 1. SOLUTION: A marking pile K is driven into the ground 30 and a slip-stop member 20 is attached around the rod shape pile body 1 for preventing from slipping when the pile body 1 is extracted from the ground 30 and caught by the ground 30. The slip-stop member 20 is provided with a clapper 21 and a mounting part 22. The clapper 21 has a slanting part 21a which inclines outwardly toward the head 1b of the pile body 1 and is caught by the ground 30, and a thinner part 21b positioning more tip end than the slanting part 21a, thinning toward the tip end of the pile body 1. The mounting part 22 has a smaller width than that of the slanting part 21a of the clapper 21, and the clapper 21 is attached to the pile body 1. COPYRIGHT: (C)2005,JPO&NCIPI
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