METHOD FOR ELIMINATION OF WATER LEAKS IN UNDERGROUND ENGINEERING FACILITIES Russian patent published in 2016 - IPC E02D31/02 

FIELD: construction.

SUBSTANCE: invention relates to construction and can be used for elimination of leaks in underground parts of buildings and structures, tunnels, collectors, water conduits, foundations, underground railroad structures, etc, especially in emergency situations in conditions of inflow of water breakthrough, as well as for repair of buried structures in conditions of intense corroded concrete with visually determined corrosion sinks. Method of eliminating water leaks in underground engineering facilities includes drilling bore pits and feeding therein hardening waterproofing composition, which is fed into pre-drilled bore pits fitted with perforated tubes-injectors by separate supply into a mixing nozzle under pressure from 0.05 to 10 MPa polymer-mineral aqueous or anhydrous suspension and polymer-mineral dry composite under pressure from 0.7-1.7 MPa. Around structure a ground-polymer-mineral screen is formed, which is polymerised under action of ground water or water breakthrough into elastic waterproof membrane of required thickness, determined by geological-hydrological conditions of operation of facility. Adjustment of injection parameters, selection of carrier polymer-mineral composite is carried out using software system, including first instrument unit for laboratory determination of parameters of soil and program for simulating intra-ground screen, information from which is transmitted to a second instrument unit connected to operation of injection pumps, controlling operating parameters of constructing screen and configured for software simulation in real time of pressure at outlet of injectors, pressure at inlet of receiver-injectors, instantaneous solution consumption on port, average solution consumption per session, solution viscosity, rock fill factor, percentage of filling delivery point, wherein injectors are fitted with electronic sensors connected to software system.

EFFECT: technical result consists in improvement of efficiency of elimination of water leaks in engineering structures.

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