Publishing House SB RAS:

Publishing House SB RAS:

Address of the Publishing House SB RAS:
Morskoy pr. 2, 630090 Novosibirsk, Russia



Advanced Search

Fundamental and applied issues of mining

2021 year, number 2

INVESTIGATION into THE effect OF BLASTING OPERATIONS ON SUPPORT WHEN SINKING A RING DRIFT IN CONDITIONS OF THE SAFYANOVSKY UNDERGROUND MINE

D. Yu. Knyazev, V. A. Kutuev
Institute of Mining, Ural Branch, Russian Academy of Sciences, Ekaterinburg, Sverdlovsk Region, Russia
Keywords: Static and dynamic stresses, blasting operations, ring drift, boundary rock mass, seismic vibrations, stability of mine workings, support parameters, spray-concrete support

Abstract

The results of investigation into the effect of static and dynamic stresses on support when sinking the ring drift in the Safyanovsky underground mine are presented. A measurement technique is developed that allows recording the velocity of rock mass displacement at several points using three-component GS-20DX geophones connected to the recording computer by means of seismic streamers. An assessment of the support type of a ring drift is made for compliance with the effective loads, taking into account the influence of blast seismic effect during sinking the drift.