FIELD: construction. SUBSTANCE: method consists in injection into loessial soil mass of loessial pulp at pressure of 40-60 atm. in volume determined by desired area of impervious curtain, e.g., 0.2-0.3 cu.m for area in order of 20 sq.m. Injected into formed hydrofrac is cement-sand grout at pressure and in the amount required to fill formed fracture. EFFECT: ecologically clean and low-cost grouting curtain.
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