METHOD FOR WATERPROOFING OF OPERATED UNDERGROUND STRUCTURE IN WATERLOGGED SOILS Russian patent published in 2021 - IPC E02D3/12 E02D31/02 

FIELD: construction.

SUBSTANCE: invention relates to construction production, namely to underground methods for waterproofing the lining of an operated underground structure in waterlogged soils. The method for waterproofing the operated underground structure in waterlogged soils includes drilling from underground structure (1) through its lining (2) into waterlogged soil (4) wells (3), pumping cement mortar (5) through wells (3) into soil (4) under pressure to ensure its hydraulic fracturing (6), and applying waterproofing shell (7) to the outer surface of lining (8) of underground structure (1), after pumping cement mortar (5) into soil (4) through wells (3), between wells (3) from underground structure (1), injection pipes (9) are installed in lining (2), into which cement-silicate solution (10) is alternately injected, germinal gap (11) is created under the pressure of injection of solution (10) onto soil (4) opposite injection pipe (9) between the outer surface of lining (8) and soil (4), germinal gap (11) is hydraulically differentiated by the contact of the surface of lining (8) with soil (4), and hydraulic differentiation gap (12) is filled with cement-silicate solution (10) until refusal to absorb it. The invention is developed in the dependent clause of the formula.

EFFECT: preventing the penetration of groundwater into the operated underground structure.

2 cl, 1 dwg