Title:
ANNULAR COFFERDAM USING TAPERED SQUARE PIPES, TEMPORARY STRUCTURE FOR PIT EXCAVATION CONSTRUCTION, AND CONSTRUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2020/085590
Kind Code:
A1
Abstract:
The present invention relates to a cofferdam structure. An annular cofferdam using tapered square pipes and a temporary structure for pit excavation construction, according to one embodiment of the present invention, include a plurality of tapered square pipes having a cross section formed in a trapezoidal shape, wherein each of the plurality of tapered square pipes has a coupling protrusion or a coupling groove formed on one surface thereof in a longitudinal direction, each of the plurality of tapered square pipes has a coupling protrusion or a coupling groove formed on the other surface thereof in a longitudinal direction, the plurality of tapered square pipes are assembled by the coupling of the coupling protrusions and the coupling grooves, and a long side between two parallel sides of a trapezoid is disposed on the outer side thereof and a short side is disposed on the inner side thereof.
Inventors:
KANG BYUNG KWAN (KR)
Application Number:
PCT/KR2019/003913
Publication Date:
April 30, 2020
Filing Date:
April 03, 2019
Export Citation:
Assignee:
KANG BYUNG KWAN (KR)
International Classes:
E02D19/02; E02D17/02; E02D17/06; E02D19/06
Foreign References:
| KR101118734B1 | 2012-03-12 | |||
| CN107217676A | 2017-09-29 | |||
| KR101255961B1 | 2013-04-23 | |||
| KR20080065333A | 2008-07-14 | |||
| KR100627709B1 | 2006-09-28 | |||
| KR101022841B1 | 2011-03-17 | |||
| KR101859440B1 | 2018-05-21 |
Other References:
See also references of EP 3872266A4
Attorney, Agent or Firm:
SEO, Jong Chul (KR)
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