Improvements relating to the placement of pipes in the ground

Details Improvements relating to the placement of pipes in the ground Improvements relating to the placement of pipes in the ground

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 1/028 (2006.01) E21B 43/10 (2006.01) F16L 55/165 (2006.01)

Patent

CA 2119018

2119018 9308367 PCTABS00021 The invention provides that an underground through borehole (28) is formed with a reaming tool (24). It is filled with a viscous fluid and as soon as possible after being so filled, a flexible lining tube (32) is inserted into the borehole (28) to keep the surface from collapsing until a rigid service pipe (12) has been pulled or pushed into the borehole.

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