METHOD FOR DUMP FORMATION AND TREATMENT Russian patent published in 1995 - IPC

FIELD: mining industry; applicable in mining of mineral deposits. SUBSTANCE: method includes placing into dump base of impervious layer 1. Rocks with low content of useful component 4 are filled on slope 2, and rocks with high content of useful component are disposed on flat part 3. Impervious layers 7 are placed between horizontal layers 6 of rocks 5, and screening partitions 8 are formed with displacement of horizontal layers 6 in decreasing order. They are formed by injection of self-hardening compound in perforated casings. Various side surfaces of dump are covered with draining layer 11 and impervious layer 12. Source 10 is located above upper surface 9 of dump, and dump is treated with solution. Useful components contained rocks 4 are dissolved and migrate to precipitate in upper horizontal layer 6 of rocks 5. Then, horizontal layer 6 is treated. Screening partitions 8 are destroyed, and after saturation of rocks of next horizontal layer 6, it is subjected to treatment, and so on. EFFECT: higher efficiency in rock storage due to alleviation of subsequent treatment of rocks with increased content of useful component in treated volume of rocks. 3 cl, 3 dwg