Title:
DRIVE ASSIST MEANS AND DRIVE METHOD FOR SPIRAL PILE
Document Type and Number:
WIPO Patent Application WO/2014/024800
Kind Code:
A1
Abstract:
The invention pertains to a drive assist means (1) for a spiral pile for assisting the driving of a spiral pile (2) in conjunction with the rotation and lowering of the spiral pile (2) when the spiral pile (2) is driven into the ground (3a). The drive assist means (1) comprises an insertion part (12) for inserting the spiral pile (2) and co-rotation prevention parts (13) fixed to the ground. Formed between the insertion part (12) and the spiral pile (2) is either a gap (y) which allows the spiral pile (2) to vibrate in a drive axis direction (A) without rotation of the pile, or a gap (y) which allows the spiral pile (2) to turn without raising or lowering of the pile.
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Inventors:
HARADA TAKEO (JP)
FURUYA KOHEI (JP)
IWASA NAOTO (JP)
FURUYA KOHEI (JP)
IWASA NAOTO (JP)
Application Number:
PCT/JP2013/071023
Publication Date:
February 13, 2014
Filing Date:
August 02, 2013
Export Citation:
Assignee:
NIPPON STEEL & SUMIKIN METAL PRODUCTS CO LTD (JP)
International Classes:
E02D7/22; E02D5/28
Foreign References:
| JP2006152632A | 2006-06-15 | |||
| JP2005256431A | 2005-09-22 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
Yoshiki Hasegawa (JP)
Yoshiki Hasegawa (JP)
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