Rock mass quality assessment to reveal potentially hazardous areas in open pit mine design

The engineering protection of pitwall slope is a burning issue in modern reality. An open pit mine design should take into account the current engineering geological conditions and should rest upon a comprehensive rock mass quality assessment to produce a prediction engineering-geological model as a result. Only an integrated approach can ensure objectivity of the modeling using data on rock mass jointing nature and ratio, obtained at the stage of exploration. The authors propose an integrated rock mass jointing assessment procedure using two methods—engineering-geological records of oriented and non-oriented drill core. Furthermore, a staged approach to the obtained information interpretation is offered with the detailed description of jointing. The article discusses a case-study of the integrated approach at a mineral deposit in the Khabarovsk Krai, with the resultant predictive engineering-geological model with the detected hazardous sites in the design pitwall slopes, with regard to spatial characteristic of the mining facility. Such model can ensure substantiation and functional reliability of engineering solutions at the stage of open pit mine design.

Keywords: jointing, engineering-geological model, rock mass stability, hard rock mass, oriented core, prediction, rock failure mechanisms, geotechnical conditions.
For citation:

Korchak S. A., Abaturova I. V., Savintsev I. A., Storozhenko L. A. Rock mass quality assessment to reveal potentially hazardous areas in open pit mine design. MIAB. Mining Inf. Anal. Bull. 2022;(9):87-98. [In Russ]. DOI: 10.25018/0236_1493_2022_9_0_87.

Acknowledgements:
Issue number: 9
Year: 2022
Page number: 87-98
ISBN: 0236-1493
UDK: 550.8.05
DOI: 10.25018/0236_1493_2022_9_0_87
Article receipt date: 30.06.2022
Date of review receipt: 12.07.2022
Date of the editorial board′s decision on the article′s publishing: 10.08.2022
About authors:

S.A. Korchak1, Graduate Student, e-mail: gingeo@mail.ru, ORCID ID: 0000-0001-7175-289X,
I.V. Abaturova1, Dr. Sci. (Geol. Mineral.), Professor, ORCID ID: 0000-0003-4829-3204,
I.A. Savintsev1, Cand. Sci. (Geol. Mineral.), Assistant Professor, ORCID ID: 0000-0002-4760-9900,
L.A. Storozhenko1, Cand. Sci. (Geol. Mineral.), Assistant Professor, ORCID ID: 0000-0003-4185-956X,
1 Ural State Mining University, 620144, Ekaterinburg, Russia.

 

For contacts:

S.A. Korchak, e-mail: gingeo@mail.ru.

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