METHOD TO CREATE WATERTIGHT COUPLING OF PIPELINE WITH BARRIER CONCRETE OR REINFORCED CONCRETE WALL Russian patent published in 2011 - IPC E02B9/04 

FIELD: construction.

SUBSTANCE: invention relates to operation of water treatment facilities and underground premises (antechambers) of coastal pump houses (CPH), nuclear (NPP), thermal (TPP) and hydraulic (HPP) power plants. The proposed method to create a watertight coupling of a pipeline 1 with a barrier concrete or reinforced concrete wall 2 includes serial application of protective mix layers onto cleaned dry surfaces of the pipeline 1 and a cartridge 3, and closing of coupling unit ends. For this purpose an adhesive layer is applied onto an outer surface of the pipeline 1 and an inner surface of the cartridge 3 in the coupling area. Then insulation is provided at the side of the ends with a cement-sand mortar 5, as well as simultaneous closing of a control 4 and an injection 6 tubes. After hardening of the cement-sand layer, a hydraulic insulation mortar is injected into an insulated area 7 of coupling via an injection tube 6 bottom-up, with thixotropic properties, as a result of which cracks and cavities are mudded in process of filling and operation of a pipeline.

EFFECT: method makes it possible to increase reliability of a coupling unit operation for water impermeability, to increase operation time and to simplify technology in production of works, when creating and repairing water-impermeable couplings of pipelines with concrete or reinforced concrete walls.