Process flow chart for high dumping by stacking conveyors on nonuniform base

Open pit mining operations expand with increasing volume of overburden removal and dumping on land surface. Aimed to reduce land areas of dumping sites, it is proposed to make higher dumps on the bases of nonuniform load-bearing capacity using stacker conveyors and cantilever spreaders, without preserving stability of the dump–base system and with transitions to the controllable movement of gangue in the dumps, with retention of the stability in the machine–dump system and maintenance of safe operation of dumping equipment. This design solution is implemented by narrow strip dumping, with parallel advance of the dumping front with its gradual transition to a fan-pattern advance. An efficient process flow chart is selected for high dumping by stacker conveyors at Muruntau open pit mine. In cyclic-and-continuous formation of 2-level dump with overall height of 175–180 m, the height of the lower level is increased from 60 to 90 m.

Naimova R. Sh., Raimjanov B. R. Process flow chart for high dumping by stacking conveyors on nonuniform base. MIAB. Mining Inf. Anal. Bull. 2020;(9):125-136. [In Russ]. DOI: 10.25018/0236-1493-2020-9-0-125-136.

R.Sh. Naimova, Dr. Sci. (Eng.), Assistant Professor, Islam Karimov Tashkent State Technical University, Tashkent, Uzbekistan, e-mail nrano-67@rambler.ru,
B.R. Raimjanov, Dr. Sci. (Eng.), Professor, Uzbek Research and Design and Exploration Institute of Geotechnology and Non-ferrous Metallurgy «O`zGEORANGMETLITI», Tashkent, Uzbekistan, e-mail: b.raimjanov@mail.ru.

R.Sh. Naimova, e-mail: nrano-67@rambler.ru.

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