Abstract
The article studies geological and engineering conditions of the mineral deposits located in cryolithic zone. The demand to study and analyze geological and engineering conditions is justified by safety requirements established to development of the deposits. The article is focused on pebble-phosphate deposit located in Polar Urals. The geological and engineering conditions of this site fall within very severe category, which is connected with endogenetic and exogenic processes of its accumulation. It is the genesis of the deposit that generated the factors that complicate drilling-in conditions, included but not limited to weathering crusts with significant depths and discontinuity, frozen rock mass and its cavernous porosity.
Highlights
The article studies geological and engineering conditions of the mineral deposits located in cryolithic zone
Results obtained at assessment of geological and engineering conditions must describe the actual conditions with the best accuracy possible, since any errors contribute to deviation of performance indicators and imperfections of design solutions against the best ones [1,2,3,4,5,6,7,8,9,10]
1) survey of geological engineering conditions based on special field, lab and in-office studies; 2) assessment of predicted parameters characterizing changes of engineeringgeological conditions and progress of man-caused processes
Summary
The article studies geological and engineering conditions of the mineral deposits located in cryolithic zone. The research methodology for Sofronovskoe deposit was focused on obtaining the information about generation of perennially frozen rocks, their properties and structure, their type, weathering crust type, extent of cavernous porosity of the mass.
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