Determination of Plasticity Zone in Rock Mass with Long Cylindrical Opening Based on Displacements Measured at the Opening Boundary
A. I. CHANYSHEV1,2, I. M. ABDULIN1
1Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
2Novosibirsk State University of Economics and Management, ul. Kamenskaya 52, Novosibirsk, 630099 Russia
Keywords: пластичность, осесимметричная деформация, смещения, упругопластическая граница, plasticity, axially symmetric deformation, displacement, elastic-plastic boundary
Abstract
By the data on measured displacements at the boundary of a cylindrical underground opening (mine shaft), in the model of a perfectly plastic body, the authors assess deformation of rock mass around the opening and find the elastic-plastic boundary and displacements in the plastic deformation zone.
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