WATER CONDUIT AND METHOD OF ITS ERECTION Russian patent published in 1996 - IPC

FIELD: erection of pipe lines of large diameters; erection of water conduits. SUBSTANCE: for erection of water conduit 3, semicylindrical recess 6 is dug in ground, watertight envelope 7 made of multi-layer glass cloth is connected with pumping station, unwound by water pressure and is laid in recess 6. Erection of water conduit is performed by increasing the rolled envelope through bonding its ends. Envelope 7 laid from center section of water conduit to upper pumping station has half as mush thickness of wall. Upper end of water conduit filled with water is connected with compressor to create pressure in water conduit in order to check it for strength, after which heater 8 is mounted on above-ground portion of water conduit, soil 5 is laid on its sides and protective casing 9 is mounted. EFFECT: enhanced reliability. 3 cl, 7 dwg