ON THE METHODOLOGY OF NEGATIVE EFFECTS MINIMIZATION FOR GEOTECHNOLOGICAL RISKS AND PHENOMENA IN THE COMPLEX DEVELOPMENT OF SUBSURFACE RESOURCES

Authors

  • S. D. Viktorov Institute of Comprehensive Exploitation of Mineral Resources, RAS
  • V. M. Zakalinsky Institute of Comprehensive Exploitation of Mineral Resources, RAS
  • R. Ya. Mingazov Institute of Comprehensive Exploitation of Mineral Resources, RAS
  • I. E. Shipovskii Institute of Comprehensive Exploitation of Mineral Resources, RAS

DOI:

https://doi.org/10.25635/2313-1586.2021.01.021

Keywords:

blast wave shape, downhole charge, rock mass, method of smoothed particles (SPH), computer simulation, stress-strain state (SSS/SDS), downhole charge beam configuration, geotechnological phenomena

Abstract

Improving known technology of drilling and blasting
with existing modern requirements of market economy
and with complication of the conditions of field development requires new scientific and technical approaches in the complex development of mineral resources in deep pits and mines. The article presents a general approach to solving this modern problem, using the analysis of the explosive destruction of rock massifs and geomechanical factors of solid mineral development systems. Within elaboration of methodologies minimizing geotechnical risks and phenomena in integrated development of depths, we defined a new mountain-physical direction of determining causal relationships and regularities for interaction of geomechanics and explosive destruction of rocks. Consideration of the conceptual issues of this priority area, which has various mining applications
with a real improving potential in economic indicators,
allowed us to propose an appropriate design of the
charge as a mean of increasing the flow energy vector of
the explosive in a certain direction. At the same time, a significant increase in the efficiency of the directed explosion is achieved and its effect in the reverse, "peripheral", direction is minimized. Based on the indicated
interrelation of mining processes and the disclosure of
relationships and regularities at the junction point of
various mining sciences, a methodology and appropriate
basic tools are developed to improve the technique and
technology in complex geomechanical conditions of mineral development. Based on the results of the research,
we propose a method of blasting operations to neutralize
the influence of anomalies in the state of the massif while
mining operations by the explosive method. The method includes the appropriate tools, characterized by an unconventional design of the borehole charge and using a
mechanism for influencing the anomalous states of the
array with a combination of its explosive features.

Published

2021-03-31

Issue

Section

DESIGN THEORY AND GEOTECHNOLOGICAL PROBLEMS OF MINING MINERAL DEPOSITS