Title:
METHOD FOR CONSTRUCTING A FOOTING AT THE BOTTOM OF A PILE AND A FIXED ANCHORAGE PORTION OF A TENSION MEMBER, AND TOOL FOR EXPANDING A BOREHOLE WALL FOR SAME
Document Type and Number:
WIPO Patent Application WO/2012/053733
Kind Code:
A2
Abstract:
The present invention relates to a method for constructing a footing at the bottom of a pile and a fixed anchorage portion of a tension member, in which: a vertical hole is bored into the ground, and then a tool for expanding the borehole wall is disposed within the bottom of the hole; the tool is driven to expand the bottom of the hole and form an expanded portion, and simultaneously, a portion of the ground on the upper side of the expanded portion is supported by means of the tool; concrete for a footing or a fixed anchorage portion is passed through the tool to fill the expanded portion of the hole with the concrete; and the tool is gradually contracted to form a space that is filled with the concrete, thereby finally casting the concrete into the footing or the fixed anchorage portion at the bottom of the pile.
Inventors:
YIM SEONG DAE (KR)
HYUN JAE HO (KR)
CHO HYEONG GWON (KR)
HYUN JAE HO (KR)
CHO HYEONG GWON (KR)
Application Number:
PCT/KR2011/005624
Publication Date:
April 26, 2012
Filing Date:
July 29, 2011
Export Citation:
Assignee:
SAMIL ENGINEERING & CONSTRUCTION CO LTD (KR)
YIM SEONG DAE (KR)
HYUN JAE HO (KR)
CHO HYEONG GWON (KR)
YIM SEONG DAE (KR)
HYUN JAE HO (KR)
CHO HYEONG GWON (KR)
International Classes:
E02D5/62; E02D7/00; E21B10/26
Foreign References:
| JP2009002082A | 2009-01-08 | |||
| JP2009127213A | 2009-06-11 | |||
| KR100549088B1 | 2006-02-10 | |||
| JP2003321989A | 2003-11-14 | |||
| JP2003161091A | 2003-06-06 |
Attorney, Agent or Firm:
BAEK, HONG-KI (KR)
백홍기 (KR)
백홍기 (KR)
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Claims: