Stability of xanthates in sulfite media

Journal of Mining Science -     

Procedure for plotting maps of the disturbance of rock masses from geophysical logging data. part I: theoretical bases

Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 5, pp. 3-20, September-October, 1991.     

Influence of the volume factor on the stressed state of pit flanks and unconventional technological solutions

Journal of Mining Science -     

Design considerations for mine workings under accumulations of water

The study outlines the effects of surface and underground subsidence patterns on the spatial distribution of in-situ permeability and its effects on groundwater inflow. The behaviour of strata surrounding a longwall face where limited knowledge exists has been outlined. The effects of mining subsidence on the surface flow pattern have been described with the remedial solutions. The mechanism of formation of sinkholes in certain chemical rockmass has been described. Factors affecting mine water inflow have been described in detail with the aid of a simplified conceptual model and case studies. Practical examples of undersea workings and those under a large accumulation of water are given, both in the United Kingdom and worldwide.     

Experience of Using Energy Effects in Ore Preparation and Concentration of Ferruginous Quartzites

The possibility is considered for changing the physico-mechanical and technological properties of ferruginous quartzites of the Mikhailovsk deposit by means of dosed energy actions.