Physical Simulation and Theoretical Estimate of Gravity-Induced Lateral Stress in Rocks
a:2:{s:4:"TYPE";s:4:"HTML";s:4:"TEXT";s:27:"I. L. PAN’KOV1,2";}
a:2:{s:4:"TYPE";s:4:"HTML";s:4:"TEXT";s:215:"1Mining Institute, Ural Branch, Russian Academy of Sciences, ul. Sibirskaya 78a, Perm, 614007 Russia
2Perm National Research Polytechnic University, pr. Komsomol’skii 29, Perm, 614990 Russia";}
Keywords: напряжение бокового распора, сила тяжести, уплотняющиеся горные породы, пористость, модуль деформации, коэффициент Пуассона, lateral stress, gravity, consolidating rocks, porosity, deformation modulus, Poisson’s ratio
Abstract
Gravity-induced lateral stress in rocks is assessed in the framework of physical simulation using a flexible thin-walled cylinder. Compression of loose geo-materials changes diameter of the cylinder, which allows estimating lateral stress. The observed dependences with various compacted geo-materials are then theoretically approximated based on characteristics of porosity, rock deformation modulus and Poisson’s ratio. The obtained relations are applicable to estimation of gravity-induced lateral stress in an intact rock mass.
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