Title:
APPARATUS AND METHOD FOR NON-CONTACT CUTTING PILE BY USING WATERJET
Document Type and Number:
WIPO Patent Application WO/2023/095986
Kind Code:
A1
Abstract:
The present invention relates to an apparatus for non-contact cutting a pile by using a waterjet and, more specifically, to a pile-cutting apparatus for cutting a pile after entering inside the pile, the apparatus comprising: a body which is formed in the shape of a tube and is inserted into the pile; a gripper unit which is provided on the outside of the body and fixes the body to the pile when the cutting apparatus reaches a cutting position on the pile; a waterjet unit which is provided on one side of the body, is fixed by the gripper unit, and sprays an abrasive mix, in which an abrasive and a fluid are mixed, toward the pile with high pressure; a rotating means which rotates the waterjet unit about the central axis of the body; a supply line which supplies the abrasive mix, in which the fluid and the abrasive are mixed in a set ratio, from the outside to the waterjet unit; a supply means which adjusts the supplying pressure of the abrasive mix supplied through the supply line; and a nozzle driving means which adjusts the position of the waterjet unit.
Inventors:
RYOO JAE-YONG (KR)
CHANG SEUNG-HOON (KR)
CHO SEUNG-YUN (KR)
CHANG SEUNG-HOON (KR)
CHO SEUNG-YUN (KR)
Application Number:
PCT/KR2021/017956
Publication Date:
June 01, 2023
Filing Date:
December 01, 2021
Export Citation:
Assignee:
K BETS (KR)
International Classes:
E21B31/16; B24C1/04; B24C5/04; E21B23/00; E21B29/00; E21B31/20
Foreign References:
| US20180021922A1 | 2018-01-25 | |||
| US20120074110A1 | 2012-03-29 | |||
| KR20140054101A | 2014-05-08 | |||
| JP2005232930A | 2005-09-02 | |||
| KR102269958B1 | 2021-06-28 |
Attorney, Agent or Firm:
IPUS PATENT & LAW FIRM (KR)
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