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Abstract
The research is carried out by a team of authors of Mine and Underground Construction Department at Siberian Federal University as part of a grant of the Russian Federation President for governmental support of young Russian scientists-Candidates of Sciences (МК-1178.2018.8).
Highlights
Perfection of drilling-and-blasting operations is one of the tendencies to improve the efficiency of a deposit mining
According to the Russian classification (GOST 25100-2011, 2013), soils are any rocks, grounds, convergences, and technogenic formations being considered as multicomponent dynamic systems as well as a part of geological environment and analyzed depending upon engineering and economic human activities
Standards are determined on the basis of their particle size, and fractionating degree of a curve factor being identified according to a cumulative curve of their granulometric composition
Summary
Perfection of drilling-and-blasting operations is one of the tendencies to improve the efficiency of a deposit mining. Expenditures, connected with drilling-and-blasting, are high percentage of total mining cost. In this connection, perfection of drillingand-blasting method is one of the key problems in the set of tasks intended to improve the efficiency of a deposit development (Tangaev, 1978; Lowrie, 2002; Vokhmin, Kurchin, Kirsanov, Shigin, & Shigina, 2017). Well spacing and arrangement is one of such basic technological blasting parameters determining a degree of rock fragmentation, capacity of drilling machinery, LHD machines as well as general technical and economic performance concerning drilling-and-blasting operations together with the whole cycle of mineral mining and processing (Shevyrev & Savko, 2012; Afum & Temeng, 2015; Kanchibotla et al, 2015). Planning – a size of a target fragment of the broken-down rock mass, projectable rock mass breaking down, blast energy keeping within the rock mass, and a level of the scheduled efforts
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