Title:
HOLE ENLARGEMENT AUGER DEVICE AND HOLE ENLARGEMENT PILE CONSTRUCTING METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2022/055298
Kind Code:
A1
Abstract:
The present invention relates to a hole enlargement auger device and a hole enlargement pile constructing method using same, by which a boring hole can be drilled into the ground while the diameter of the lower end of the hole is enlarged, and without a separate mechanical manipulation or erroneous operation, an auger wing can be unfolded by downward movement to enlarge and drill a hole, or can be folded and retrieved only by upward movement.
Inventors:
JEONG SOON YONG (KR)
Application Number:
PCT/KR2021/012343
Publication Date:
March 17, 2022
Filing Date:
September 10, 2021
Export Citation:
Assignee:
EASYGEOTECH (KR)
International Classes:
E02D5/56; E02D5/46; E02D5/52
Foreign References:
| KR101961701B1 | 2019-07-17 | |||
| KR20190082548A | 2019-07-10 | |||
| KR20170044580A | 2017-04-25 | |||
| KR20190090510A | 2019-08-02 | |||
| JP2005273293A | 2005-10-06 |
Attorney, Agent or Firm:
LEE, Hyeongwoo (KR)
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