METHOD FOR ESTABLISHMENT OF IMPERVIOUS CURTAIN IN PERMAFROST ROCKS OF CRYOLITOZONE

摘要

FIELD: mining. SUBSTANCE: method for establishment of impervious curtain in permafrost rocks of cryolitozone includes drilling of grouting holes over contour of rock mass and injection into holes of brine and grouting mortar. Novelty consists in that bribe injection is effected alternately into each well. Brine pumped out through neighboring hole. Grouting mortar is injected after stabilization of concentration of pumped out brine in well and after injection of brine into them. EFFECT: higher efficiency. 2 dwg