Original scientific paper
https://doi.org/10.17794/rgn.2019.3.3
CONCEPTUAL DEVELOPMENT OF THE TRANSITION FROM DRILL AND BLAST EXCAVATION TO NON-BLASTING METHODS FOR THE PREPARATION OF MINED ROCK IN SURFACE MINING
Boris Sobko
; Surface Mining Department, National Technical University Dnipro Polytechnic, Dmytro Yavornytsky av., 19, 49005, Dnipro, Ukraine
Oleksii Lozhnikov
; Surface Mining Department, National Technical University Dnipro Polytechnic, Dmytro Yavornytsky av., 19, 49005, Dnipro, Ukraine
Volodymyr Levytskyi
orcid.org/0000-0002-3892-5848
; Faculty of Mining and Ecology, Zhytomyr State Technological University, str. Chudnivska 103, 10005, Zhytomyr, Ukraine
Galyna Skyba
; Faculty of Mining and Ecology, Zhytomyr State Technological University, str. Chudnivska 103, 10005, Zhytomyr, Ukraine
Abstract
This article is devoted to the conceptual development of the transition from drill and blast excavation to a non-blasting method for the preparation of hard rock before excavation at construction material deposits. The scientific and technical literature on the problems in the blasting of hard rock in preparation for excavation is analysed. A classification of mining equipment for the non-blasting development of a rock mass for excavation has been developed, taking into account the nature of the operation of mining equipment. The concept of the transition from drill and blast excavation to nonblasting methods in the preparation of mined rock in non-metallic material quarries is presented. The research results of the parameter determination of the elements of the system for the development of non-blasting equipment at a limestone quarry are presented. The economic efficiency of a hydraulic excavator with a ripper tooth for developing limestone with a strength of up to 30 MPa is established.
Keywords
non-blasting development; mechanical ripping; mining equipment; elements of the mining system; hard mined rocks
Hrčak ID:
222416
URI
Publication date:
15.7.2019.
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