Technology of Exposed Rock Surface Insulation against the Influence of Mine Atmosphere
Yu. N. Shaposhnik, A. I. Konurin, O. M. Usol’tseva, A. A. Neverov, S. A. Neverov
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Science, Novosibirsk, 630091 Russia 91 Russia
Keywords: Горные породы, торкрет-бетон, напыляемая мембрана, прочностные свойства, адгезия, выработка, обнажение, устойчивость, Rocks, shotcrete, spray-on membrane insulation, strength characteristic, adhesion, stope, exposed surface, stability
Abstract
The authors discuss the problem connected with insulation of exposed rock surface areas against the aggressive influence of mine atmosphere and rock falls during mining. The lab-scale tests determine the moisture effect on the strength of rocks in the Orlov Ore Field. The tensile strength of samples of isolation membrane as well as their adhesion to rocks and shotcrete is assessed. The technology of preparation and application of polymer membrane insulation layer on the surface of differently damaged areas on the roof and sidewalls in stopes is justified for the Orlov Mine.
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