Strain concentration in wave field generated by blasting in elongated boreholes

With a view to improving the blasting quality control, this article discusses an integrated approach to blast effect analysis. The data of physical tests of composite simulation models in a production environment are compared with the behavior parameters of geo-materials under explosive loads from computer modeling. The computer model is capable of the adequate description of the dynamic strength and failure of geo-medium depending on stresses, type of loading and strain rates. The proposed integrated research procedure allows the comprehensive and most informative estimation of different modes of blasting by studying the patterns and kinetics of strains, and formation of shattering zones as concentration of the latter predetermines breaking and fragmentation of samples. The quality of fragmentation depends on the type of explosives, which is addressed in the article. Furthermore, it is quantitatively shown that the kinetics of time-dependent fragmentation by high explosives, with high energy and detonation velocity cardinally differs from the effect of gentle blasting.

Keywords: explosive, elongated blastholes, fragmentation, physical tests, computer modeling, smoothed particle hydrodynamics.
For citation:

Efremovtsev N. N., Trofimov V.A., Shipovskii I. E. Strain concentration in wave field generated by blasting in elongated boreholes. MIAB. Mining Inf. Anal. Bull. 2020;(8):7385. [In Russ]. DOI: 10.25018/0236-1493-2020-8-0-73-85.


The study was supported by the Russian Foundation for Basic Research, Grant No. 18-05-00912.

Issue number: 8
Year: 2020
Page number: 73-85
ISBN: 0236-1493
UDK: 622.235: 539.3
DOI: 10.25018/0236-1493-2020-8-0-73-85
Article receipt date: 27.02.2020
Date of review receipt: 16.03.2020
Date of the editorial board′s decision on the article′s publishing: 20.07.2020
About authors:

N.N. Efremovtsev1, Cand. Sci. (Eng.), Senior Researcher, e-mail:,
V.A. Trofimov1, Dr. Sci. (Eng.), Head of Laboratory, e-mail:,
I.E. Shipovskii1, Cand. Sci. (Eng.), Senior Researcher, e-mail:,
1 Institute of Problems of Comprehensive Exploitation of Mineral Resources of Russian Academy of Sciences, 111020, Moscow, Russia.


For contacts:

I.E. Shipovskii, e-mail:


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