Ensuring Sustainability of Preparatory and Permanent Mining Workings in Deep Mines of Bump-hazardous Deposits
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This article is focused on solving the urgent problems of ensuring sustainability of mining workings in deep mines of bump-hazardous deposits by selecting and defining the types and efficient parameters of timbering, based on the author’s many years of theoretical and experimental studies in the mines of JSC “Sevuralboksitruda”. In order to characterize the state of outcrops of loose mining workings, the criterion of strain of the roof and the sides of the working was proposed, on the basis of which the selected categories that characterize the stress-strain behavior of the outcrops of mine workings with regard to dynamic forms of rock pressure manifestation at great depths. Depending on the workings outcrops stability criterion, recommendations have been developed on types and parameters of earthquake-proof timbering.
KEYWORDS:Mine; mine workings; rock-bump hazardous deposits; earthquake-resistant timbering; criterion of stability; rocks massif; steel-and-polymer rod; drift size
