Sfoglia per Soggetto "Olekminsk deposit"
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Strength Calculations of Block Elements of Room-and-Pillar Mining under the Permafrost Conditions
(London : Taylor & Francis Group, 2010)The paper covers results of rheological properties of gypsum under natural conditions of permafrost and stress-and-strain conditions of room’s roof rocks in gypsum quarries depending upon the ceiling thickness. The ...