| 摘要 |
The present invention provides a helical pile including a helical member (100) having a conical unit (101) in the lower part of a pipe-shaped body, having helical blades (102) on the outer circumference of the body, a discharge hole for discharging grout in the body, and a male screw coupling unit (110) with the outer circumference formed into a male screw structure on the upper part of the body and an extension member having a female screw coupling unit (220) with the inner circumference formed into a female screw structure to be coupled to the male screw coupling unit (110) in the lower part of the pipe-shaped body. A fixing member coupling groove (111) is formed in the male screw coupling unit (110), and a fixing member through-hole (221) is formed in the female screw coupling unit (220). The helical pile is characterized by fixating the helical member (100) and the extension member (200) by coupling a fixing member (a) to the fixing member coupling groove (111) via the fixing member through-hole (221) while the male screw coupling unit (110) is coupled to the female screw coupling unit (220). Accordingly, the straightness of the pile is excellent, and a stable grouting work is possible. |
