| 摘要 |
PROBLEM TO BE SOLVED: To provide a reaction force pile by which a large pulling out reaction force can be gotten even if a driving depth is shallow and a hole formed in the driving side of the ground or the like can be made small and further, the reaction pile can be driven straight with ease in the driving side. SOLUTION: A vine-winding part 6 for securing a reaction force against a pulling-out force is provided, a thrusting straight part 7 for a protruding guide in the tip end direction to the tip end of the vine-winding part 6 is provided. In the condition that the thrusting straight part 7 is stuck into the ground surface 5, by driving into the ground surface 5 while rotating it, the vine-winding part 6 is advanced into the ground surface 5. COPYRIGHT: (C)2005,JPO&NCIPI
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