Process and device for replacing an underground pipe

Details Process and device for replacing an underground pipe Process and device for replacing an underground pipe

F - Mech Eng,Light,Heat,Weapons

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285/12, 61/4.6

F16L 1/028 (2006.01) E21B 7/30 (2006.01) E21B 43/114 (2006.01) F16L 55/00 (2006.01) F16L 55/165 (2006.01)

Patent

CA 2034852

ABSTRACT OF THE DISCLOSURE In order to replace a first underground pipe such as a metal pipe by a second pipe of mean diameter substantially equal to or greater than that of the first pipe, the first pipe is cut longitudinally by a localized projection of a flow of matter, par- ticles or radiation thanks to a localized projection means which are displaced inside the first pipe in order to divide the first pipe longitudinally into at least two segments. Cutting by localized projection avoids in particu- lar the creation of vibrations during fragmentation of the pipe to be replaced.

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