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.

Keywords: open pit mine, stacker conveyor pile, dumping, stability, level, dump height, operation safety, dumping strip width, rock properties, repose angle.
For citation:

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.

Acknowledgements:
Issue number: 9
Year: 2020
Page number: 125-136
ISBN: 0236-1493
UDK: 622.271.3
DOI: 10.25018/0236-1493-2020-9-0-125-136
Article receipt date: 29.01.2020
Date of review receipt: 29.05.2020
Date of the editorial board′s decision on the article′s publishing: 20.08.2020
About authors:

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.

For contacts:

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

Bibliography:

1. Fedorov N. A., Ioffe A. M., Galimulin R. R. Pit wall and dump slope stability experience of Muruntau open pit mine. Gornyi Zhurnal. 1992, no 2, pp. 35—38. [In Russ].

2. Levenson S. Ya., Gendlina L. I., Morozov A. V., Usol'tsev V. M. Efficient use conditions of vibration equipment in dumping with dump trucks. MIAB. Mining Inf. Anal. Bull. 2011, no 5, pp. 230—235. [In Russ].

3. Eremin G. M. Justification of efficient dumping technology choice without dump failure and with regard to environment standards. MIAB. Mining Inf. Anal. Bull. 2015, no 5, pp. 44—50. [In Russ].

4. Eremin G. M. Justification of ground rules and methodology for technological improvement of dumping on hillside. MIAB. Mining Inf. Anal. Bull. 2010, no 9, pp. 167—171. [In Russ].

5. Suleman H. A., Baffoe P. E. Selecting sites for mine waste dumps using GIS techniques at goldfields, Damang mine. Ghana Mining Journal. 2017. Vol. 17. No. 1. Pp. 9—17.

6. Huang Lei, Zhang Peng, Hu Yigang, Zhao Yang Vegetation succession and soil infiltration characteristics under different aged refuse dumps at the Heidaigou opencast coal mine. Global Ecology and Conservation. 2015. No 4. Pp. 255—263.

7. Arshi An Reclamation of coalmine overburden dump through en vironmental friendly method. Saudi Journal of Biological Sciences. 2017. No 24. Pp. 371—378.

8. Popov V. N. Stable high dumping on weak bases. Otkrytaya dobycha poleznykh iskopaemykh: Tezisy dokladov 6-y Natsional'noy konferentsii s mezhdunarodnym uchastiem [Open Pit Mining: Proceedings of the 6th National Conference with International Participation. Bulgaria: Nesberg], Bulgaria, Nesberg, 2001.

9. Popov S. V. Razrabotka metodov obespecheniya ustoychivosti vysokikh otvalov na slabom osnovanii [Methods of stabilization of high dumps on weak bases], Candidate’s thesis, Moscow, 2003, 22 p.

10. Popov V. N., Shpakov P. S. Upravlenie ustoychivost'yu kar'ernykh otkosov [Pit wall slope stability control], Moscow, Izd-vo «Gornaya kniga», 2007, pp. 490—500.

11. Kucherskiy N. I. Sovremennye tekhnologii pri osvoenii korennykh mestorozhdeniy zolota [Modern mining technologies for primary gold deposits], Moscow, Izd. dom «Ruda i metally», 2007, 696 p.

12. Naimova R. Sh. Razrabotka tekhnologii formirovaniya vysokikh odnoyarusnykh otvalov pri peremennoy nesushchey sposobnosti osnovaniya [Technology of high single-level dumping at variable load-bearing capacity of base], Candidate’s thesis, Navoi, 2005, 116 p.

13. Klimenko A. I. Controllable movement of rock layers in dumping with dump trucks. Mountain Bulletin of Uzbekistan. 2000, no 1, pp. 24—29. [In Russ].

14. Raimzhanov B. R., Raimov S. S., Naimova R. Sh. Stress–strain analysis of pit wall under loading due to dump. Mountain Bulletin of Uzbekistan. 2018, no 1, pp. 22—25. [In Russ].

15. Snitka N. P., Naimova R. Sh. Trends of integrated use of waste resources in Muruntau open pit mine. Gornyi Zhurnal. 2018, no 9, pp. 57—61. [In Russ].

16. Snitka N. P., Naimova R. Sh., Ravshanov A. F. Sovershenstvovanie metodov upravleniya tekhnogennymi resursami pri otkrytoy razrabotke mestorozhdeniy [Improvement of open pit mining waste management], Tashkent, FAN, 2018, 252 p.

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