METHOD OF UNDERWATER HYDRAULIC DEPOSITION OF GROUND Russian patent published in 2002 - IPC

FIELD: mining; applicable in hydraulic filling of dams, embankments, tailings dumps. SUBSTANCE: method includes laying of bank pressure and distributing pulp lines, hydraulic filling of ground by discharge of slurry from end hole of distributing pulp line to under water with formation of fill cones. Novelty consists in that distributing pulp line with insignificant buoyancy and discharge holes located in direction of slurry flow and different in sizes and similar in transmissive capacity is located on surface of water basin over entire front of filling. Total transmissive capacity of discharge holes are not in excess of 90% of total amount of consumed slurry, and slurry consumption through end hole amounts to, at least, 10% of total slurry consumption. Ground is filled by simultaneous discharge of slurry through end hole and discharge holes of distributing pulp line. EFFECT: higher efficiency of method due to simplification of work and reduced expenditures. 2 dwg