METHOD OF REPAIR OF LARGE-DIAMETER PIPELINES

• Main Authors: LOBANOV FEDOR IVANOVICH, KHARTAN KHANS-GEORG, KUZNETSOV ALEKSANDR MATVEEVICH, NEPARIDZE RAUL' SHALVOVICH
• Format: Patent
• Language: English; Russian
• Published: 27.04.2006
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

FIELD: pipeline transport. ^ SUBSTANCE: invention is used at repair of main lines and sewage water collectors. According to proposed method, auxiliary polymeric pipe is driven into pipe to be repair in which strip is cut over entire length of polymeric pipe preliminarily, cut being arranged in lower part of pipe under repair. Polymeric pipe is pressed to inner surface of pipe under repair and is fixed in place by expanding rods. Fitting is installed in lower part of pipe under repair passing through cut of polymeric pipe, and then fitting is filled with concrete. After hardening of concrete, expanding rods are removed, interpipe space is filled with water solution of anionic polymer with hardener under pressure. ^ EFFECT: improved quality of repair pipe. ^ 9 cl