PROMISING TRENDS FOR USING SEISMIC DEFORMATION MONITORING DATA IN DRILLING-AND-BLASTING IN OPEN PIT MINES

Mines operate high-precision electronic priming systems, therefore it is required to improve selection of blasting pattern parameters with regard to structural and mechanical properties of rocks and their variability within a treated area in block rock mass with a view to enhancing breakage efficiency. The discussed approach is based on determination of structure, jointing characteristic and strength of rocks using data of ground-based laser scanning and engineering seismics, as well as detonation velocities of explosives—from on-site measurements taken by icroTrap™ VOD/Data Recorder. It is shown that strength, acoustic acoustic impedance and blast wave velocity should be taken into account when selecting lines of burden, structures of explosive charges, blast patterns, stemming arrangement and delay intervals with regard to structural features of block rock mass. Both measurement tools and experimental data obtained in the seismic deformation monitoring of geomechanical and geodynamic behavior of rocks in mines are applicable to attain the objective. Design of blasting patterns using the listed parameters allows optimizing delay intervals. The method application is described in terms of limestone and magnetite production.


For citation: Oparin V. N., V.F. Yushkin, Grishin A. N., Bogatyrev A. V., Porokhovskiy N. N., Rublev D. E. Promising trends for using seismic deformation monitoring data in drilling-and-blasting in open pit mines. MIAB. Mining Inf. Anal. Bull. 2019;(7):104-122. [In Russ]. DOI: 10.25018/0236-1493-201907-0-104-122.


Acknowledgements: This study was supported by the Russian Science Foundation, Project No. 17-17-01282.

Keywords

Quaternary deposits, sandstone, limestone, erosion, jointing description, impact, blast wave, amplitude–frequency response, damage location, blasting pattern designs, structural hierarchy, physical and mechanical properties of rocks, seismic deformation monitoring, nonlinear geomechanical processes.

Issue number: 7
Year: 2019
ISBN: 0236-1493
UDK: 550.3 + 622.33.013.3
DOI: 10.25018/0236-1493-2019-07-0-104-122
Authors: Oparin V. N., Yushkin V. F., Grishin A. N., etc.

About authors: V.N. Oparin (1), Dr. Sci. (Phys. Mathem.), Professor, Head of Department, Corresponding Member of Russian Academy of Sciences, e-mail: oparin@misd.ru, V.F. Yushkin (1), Dr. Sci. (Eng.), Leading Researcher, e-mail: L14@ngs.ru, A.N. Grishin, Cand. Sci. (Eng.), Assistant Professor, e-mail: gan66@mail.ru, Siberian Transport University, 630049, Novosibirsk, Russia, A.V. Bogatyrev, Cand. Sci. (Eng.), Deputy Technical Director, Branch «Bachat coal mine» JSC «UK «Kuzbassrazrezugol», Bachatsky, Russia, e-mail: bogatirev@bach.kru.ru, N.N. Porokhovskiy, Technical Director, e-mail: porohovskiy@nkuoao.ru, Iskitimsky quarry, JSC «Novosibirsk Quarry Administration», Novosibirsk, Russia, D.E. Rublev (1), Engineer, Master’s Degree Student, e-mail: denmiir@211.ru, 1) Chinakal Institute of Mining, Siberian Branch of Russian Academy of Sciences, 630091, Novosibirsk, Russia Corresponding author: V.F. Yushkin, e-mail: L14@ngs.ru.

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