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Title:
NON-OPEN CUT REPLACEMENT DEVICE FOR UNDERGROUND PIPE
Document Type and Number:
WIPO Patent Application WO/2018/190629
Kind Code:
A1
Abstract:
The present invention relates to a non-open cut replacement device for an underground pipe, excavating both ends of an old underground pipe, which includes pipe elbows of a small-diameter water supply pipeline and the like buried therein and is in an impossible or difficult environment to be excavated, and enabling the same to be replaced with a new underground pipe. The non-open cut replacement device can insert the new underground pipe at the same time as a breaking and/or replacing operation of the buried underground pipe even in a state in which only both end sides thereof are excavated without excavating the entire area of which the underground pipes are buried, in order to replace the old underground pipe that is difficult or impossible to be excavated by equipment, and can change the proceeding direction of a pulling wire into a horizontal direction at an excavated surface at which a pulling part is positioned, so as to enable operation of laying and pulling of the old pipe in a method which minimizes inconveniences to road traffic even though the old pipe is made from a metal material.

Inventors:
KIM JOUNG HYEON (KR)
KIM DO HUN (KR)
PARK SANG BONG (KR)
LEE GYUNG SUB (KR)
OH KYUNG SEOK (KR)
LEE GI BEOM (KR)
PARK BYUNG DON (KR)
PARK SE CHOOL (KR)
PARK JAE HWAN (KR)
JEON JU HO (KR)
Application Number:
PCT/KR2018/004235
Publication Date:
October 18, 2018
Filing Date:
April 11, 2018
Export Citation:
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Assignee:
TUKSU ENG & CONSTRUCTION LTD (KR)
KOREA WATER RESOURCES CORP (KR)
International Classes:
F16L55/18; F16L55/16; F16L55/165; F16L55/38
Foreign References:
KR101264651B12013-05-15
US7384214B22008-06-10
JP2000161585A2000-06-16
JP2002228045A2002-08-14
KR101169040B12012-07-27
Attorney, Agent or Firm:
MOON, Hwan-Goo (KR)
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