FIELD: mining.
SUBSTANCE: invention relates to mining and underground construction. In the method for strengthening the rock mass, organomineral two-component composition is obtained directly in the rock mass by sequential injection of component A first, then component-B in a volume ratio of 1:1. Component A contains, wt. %: sodium silicate 76; glycerin 9.5; distilled water 9.5; adsorbent contributing to the formation of a film of component A on the surface of continuity violations, and rock grains and soil: micelle-forming surfactant mPAV ML-80 5; polymerization catalyst: dimorpholinodiethyl ether 0.3-0.8 over 100, wt. %. Component B contains, wt. %: polyisocyanate 62; plasticizer: dibutyl phthalate 38.
EFFECT: increase in the efficiency of injection strengthening of the rock mass, the formation of a reinforcing cellular structure in the rock mass out of the cured composition without continuous filling of rock voids.
7 cl, 1 dwg, 1 tbl
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