Authors: D.A. Shokarev, Yu.N. Shaposhnik, A.I. Konurin

Title of the article: Implementation of the reinforced combined bolting technology during heading of mine workings in the Artemiev mine

Year: 2018, Issue: 2, Pages: 21-29

Branch of knowledge: Earth sciences

Index UDK: 622.281

DOI: 10.26730/1999-4125-2018-2-21-29

Abstract: The urgency of the discussed issue. The article provides the analysis of mining and geological conditions, as well as design solutions for supporting mine workings in difficult mining and geological conditions, and the summary of the experience of supporting mine workings in unstable zones in the conditions of the Artemiev mine of Vostoktsvetmet LLP. The main aim of the study: Provide justification of the technology of supporting the workings with the reinforced combined support using self-fastening anchors and shotcrete in the difficult mining and geological conditions of the Artemiev mine. Study the technological features of using the reinforced bolting methods on the basis of SFA, including reinforcing elements for the shotcrete layer of the support: welded mesh, reinforcing strips - reinforcing frames in such structures as SFA-UKK and SFA-Armosupport. The methods used in the study: The bearing capacity of installed anchors, shotcrete adhesion, bending and compression strength of samples obtained in the mine conditions were tested. The calculations of technical and economic parameters of the proposed supporting options were performed. The results: The strength parameters of the combined support on the basis of self-fastening anchors (SFA) manufactured by UralEnergoResurs LLC and shotcrete type MasterRoc STS 1510 produced by BASF were de-termined, the conformance assessment of the support to the requirements of standards and normative and tech-nical documentation was made.

Key words: stability of rocks support of mine workings bolting technology shotcrete self-fastening anchors

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