FIELD: pressure hydraulic structures. SUBSTANCE: method involves injection of water-inert polymeric epoxy compounds whose density is not less than 1.2 g/cm3. Viscosity of compound ranges between 5000 and 20 000 cP depending on kind of cracks in foot area where water is injected. Cracks and voids in foot are pre-washed by opening injecting wells; composition of flowing water is checked. Water may be injected in several stages; next injection is made at higher water level in reservoir than during previous injection. EFFECT: eliminated rock suffusion; improved reliability and safety of hydraulic structure. 4 cl
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