ORIGINAL ARTICLE
Rock Mass Preconditioning Methods in Underground Mines and Ways of its Evaluation – state-of-the-art
 
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Rock Engineering, KGHM Cuprum Sp. z o.o. - CBR, Poland
 
 
Submission date: 2024-08-02
 
 
Final revision date: 2024-11-06
 
 
Acceptance date: 2024-11-15
 
 
Online publication date: 2024-11-26
 
 
Publication date: 2024-11-26
 
 
Corresponding author
Marcin Szumny   

Rock Engineering, KGHM Cuprum Sp. z o.o. - CBR, Gen. Wł. Sikorskiego 2-8, 53-659, Wrocław, Poland
 
 
Civil and Environmental Engineering Reports 2024;34(4):381-402
 
KEYWORDS
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ABSTRACT
Currently, the most serious problem associated with underground mining of deposits is geomechanical hazard, which significantly disrupts the production process and exposes the mining crew to a threat to life and health. As recent achievements in the field of minimizing geomechanical hazards show, rock mass preconditioning is the most effective way to prevent the risk of rock bursts and mining-induced seismic activity in underground mines. In principle, rock mass preconditioning involves reducing rock mass strength parameters by the controlled creation in the fractured zones by introducing an external force inside the rock mass. Most often, this can be achieved using hydrofracturing or blasting. This paper is focused on the description of the current State-of-The-Art in rock mass preconditioning methods which are applied to improve the efficiency of ore extraction in underground mines. Selected ways of rockmass preconditioning evaluation has been analysed and future ways of development in the scope of active rock mass preconditioning has been described.
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