TUYAUTERIE, PROCEDE DE POSE DE TUYAUTERIES ET DISPOSITIF POUR LA REALISATION DUDIT PROCEDE

LA PRESENTE INVENTION SE RAPPORTE GENERALEMENT A UNE TUYAUTERIE REALISEE SOUS FORME D'UN ENSEMBLE D'ENVELOPPES COAXIALES LIEES RIGIDEMENT ENTRE ELLES.SELON L'INVENTION, UNE ENVELOPPE EXTERIEURE 1 DE LA TUYAUTERIE 9 EST CONSTITUEE DE SOL 2 ET L'ENVELOPPE INTERIEURE EST MULTICOUCHE, L'UNE DESDITES COUCHES 1A CONSTITUANT PAR EXEMPLE LA COUCHE 4, FORMANT LA SURFACE INTERIEURE DE LA TUYAUTERIE ETANT ETANCHE ET D'AUTRES COUCHES 3 DE L'ENVELOPPE INTERIEURE ETANT NON ETANCHES ET L'ENSEMBLE D'ENVELOPPES DE LA TUYAUTERIE 9 ETANT LIE PAR UN LIANT, POUR FORMER UN MONOLITHE.L'INVENTION TROUVE NOTAMMENT APPLICATION DANS LE TRANSPORT D'AGENTS LIQUIDES OU GAZEUX, HYDRAULIQUE OU PNEUMATIQUE. PCT No. PCT/SU85/00083 Sec. 371 Date Jun. 9, 1986 Sec. 102(e) Date Jun. 9, 1986 PCT Filed Oct. 10, 1985 PCT Pub. No. WO86/02422 PCT Pub. Date Apr. 24, 1986.The claimed pipeline is made of coaxially arranged envelopes rigidly connected to each other, in which case the internal envelope is made of nonhermetic layers and hermetically sealed layers (3, 4) and the whole set of envelopes is impregnated with a binder (5) and forms a monolithic structure, the external envelope (1) being made of a ground (2). The method consists in forming hole (11) in the ground and insertion into the ground of the nonhermetic layers and hermetically sealed layers (3, 4) of the internal envelope, impregnation of its ground (2) with a binder (5) and followed by expansion and densing of the envelopes by producing an excess pressure of the working medium in the pipeline (9). The device includes a propelling unit (16), on the frame (17) of which there are mounted a working member (18) for forming a hole (11) in the ground (2) and a mechanism for insertion of the layers (11) of the internal envelope of the pipeline (9) made of two units (19 and 20), one of which is mounted stationarily above the hole (11) and used for insertion of the hermetically sealed layer (4) of the envelope and the other unit is mounted on the propelling unit (16) and is used for insertion of the nonhermetic layers (3) into the hole (11); the device is also provided with a means (21) for fixing the ends (15) of the envelope, said means being installed at the origin of these layers.