Physical simulation and theoretical estimate of gravity-induced horizontal stress in rocks

Abstract

Gravity-induced horizontal 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 horizontal 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 horizontal stress in an intact rock mass.