The work analyzes current technologies of ore mining applying self-propelled equipment in underground conditions; studies practices using the general and for broken transportation only; considers performance enterprises similar mining-geological miningtechnical generalizes causes high loss dilution rates Kryvyi Rih iron basin, thus revealing a problem providing efficiency increased extraction w...

Grid computing is emerging as the foundation upon which virtual organizations can be built. Such organizations are becoming of increasing importance for tackling various projects, both in academic and in business fields. This paper is concerned with presenting an integrated view of the grid to readers interested in understanding it, or perhaps in developing it further or making use of it in the...

Gradual instability of coal pillars left behind underground with room mining is one the main reasons for sudden roof caving in gob, surface subsidence, and other significant hazards. Moreover, implies great losses resources. In this paper, failure mode pillar process were analyzed according to coalfield regional engineering geological hydrogeological conditions. A numerical model was adopted st...

The stability graph method for open stope design is one of the most widely used approaches predicting stopes in underground metalliferous mines. primary purpose this work to propose a new chart, which includes all relevant case histories, and exclude parameters with uncertainties determining number. modified number was achieve goal, Extended Mathews database recalculated compared graph. In stud...

©2012 Dustri-Verlag Dr. K. Feistle ISSN 0946-1965 DOI 10.5414/CPP50065 e-pub: December 28, 2011 Correspondence to Dr. Matthias Stope Department of Medical Biochemistry and Molecular Biology, Ernst Moritz Arndt University of Greifswald, Fleischmannstraße 42 – 44, 17475 Greifswald, Germany matthias.stope@ uni-greifswald.de

Under the guidance of green mining and scientific ideas, strata movement its control have achieved a series research developments in China. Based on summary achievements related to characteristics, influences activity surface environment, utilizing controlling methods, critical problems that need be solved are identified for study control. Mining activities will cause redistribution stress. The...

Along with the increasing excavation of underground spaces, mining industry has developed various techniques for refilling these voids. One them is cemented paste backfill (CBP), coming from mixing tailings water and a binder. These pastes are then transported to cavities through pipes into voids, which they fill in layering pattern. In this paper we explore capabilities simplified thin-film mo...

Cemented rock fill (CRF) is commonly used in cut-and-fill stoping operations underground mining. This allows for the maximum recovery of ore. Backfilling can improve stope stability workings and then ground whole mine site. However, backfilling step scenarios vary from site to paper presents investigation five different their impacts on stopes at four mining levels. A comprehensive comparison d...

A reasonable and stable stope structure is the premise of realizing safe mining underground metal ore. To safely mine gently inclined medium-thick ore body, stability in Bainiuchang Mine was analyzed based on pillar area bearing theory, with regard to nine groups structural parameters numerically simulated. The results show that existing failed maintain requirements tended be exposed risk colla...