Imashev A., Kebal Ya., Kebal A. Problems of dumping technology in the inundated open pit space in conditions of surface deformation

Details

Parent Category: Geo-Technical Mechanics, 2022

Category: Geo-Technical Mechanics, 2022, № 162

Geoteh. meh. 2022, 162, 144-153

https://doi.org/10.15407/geotm2022.162.144

 

PROBLEMS OF DUMPING TECHNOLOGY IN THE INUNDATED OPEN PIT SPACE IN CONDITIONS OF SURFACE DEFORMATION

¹Imashev A., ²Kebal Ya., ²Kebal A.

¹Abylkas Saginov Karaganda Technical University, ²KAI Group of Companies

UDC 622.271.3

Language: English

Abstract. Challenge. The objective of this research is to determine the minimum permissible safety berm for loading and mining equipment operation, ensuring safe and efficient dumping under the shear in recent dumping, subsidence of dump rock mass and fractures.
Research methods. Analytical and statistical analyses of the previously obtained results, simulation modeling, and in situ surveys of the research object were performed.
Scientific originality. Depending on the working progress, the dumping mode is specified for inundated slopes. The dependence of the stability factor on the safety berm size is specified. According to theoretical research results, the components of the forces acting on the slickensided surface are obtained.
Practical implications. Residual volumes of rock storage under the current technology using the available equipment were determined by calculations. Geomechanical analyses were conducted to determine the minimum permissible safety berm for loading and mining equipment. They revealed the dependence of stability factor on the size of the safety berm and identified that the minimum permissible safety berm for loading and mining equipment under the dumping conditions in the inundated open pit No. 1 of ArcelorMittal Kryvyi Rih PJSC with a standard stability factor (SF) (1.15) is 34 meters. The obtained results prove the possibility of using the existing equipment and applying the dumping technology in the rock deformation mode, subject to developing technological schemes ensuring safe and efficient dumping. For further dumping using the available equipment in the mined space of inundated open pit No. 1, it is required to perform research to determine safety zones or develop alternative ways and technologies of waste rock storage in open pit No. 1 applying the available equipment reducing the dumping cost and increasing the efficiency of using residual mine workings.
Keywords: inundated open pit, dumping, internal dump, shears, deformations, slope stability, excavator, sliding wedge, stability factor, K–MINE.

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About authors:

Imashev Askar, Candidate of Technical Sciences (Ph.D), Associate Professor, Head in Department of Development of Mineral Deposits, Abylkas Saginov Karaganda Technical University, Karaganda, Republic of Kazakhstan,  This email address is being protected from spambots. You need JavaScript enabled to view it.

Kebal Yaroslav, Маster of Science, Chief Project Engineer, KAI Group of Companies, Kryvyi Rih, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Kebal Alina, Маster of Science, Desing Engineer, KAI Group of Companies, Kryvyi Rih, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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