Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Repair – replacement – or improvement
Patent
1997-08-29
2000-05-30
Will, Thomas B.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Repair, replacement, or improvement
405154, 175 52, E02F 510, B63B 3503, E21B 1900
Patent
active
060684267
ABSTRACT:
The method concerned is for connecting a section of buried main conduit (120) to a secondary conduit. For this purpose, a starting pit (200) and a finishing pit (204) are dug, a drilling device comprising a series of rods to be placed end to end is lowered into one pit in a manner such as to drill along a horizontal axis at the level of or at a height close to that of the main conduit. Upon completion of the drilling, the secondary conduit is passed through the bore-hole (202) in a manner such that an end portion is situated above the pit, this portion is fixed to a first region of a branch connector for connecting the two conduits and this end portion, equipped with its connecter, is lowered into the pit and the connector is fixed to the main conduit.
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Blanquet Fran.cedilla.ois
Brazzini Jean-Pierre
Le Cointe Patrick
Gaz de France (G.D.F.) Service National
Hartmann Gary S.
Will Thomas B.
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