Elastoplastic problem for noncircular openings under Coulomb's criterion
AG Protosenya, MA Karasev, NA Belyakov - Journal of Mining Science, 2016 - Springer
AG Protosenya, MA Karasev, NA Belyakov
Journal of Mining Science, 2016•SpringerAn elastoplastic problem is considered for elliptical, arched, square and polygonal cross-
section openings on the assumption of Coulomb's limit equilibrium and varied lateral earth
pressure coefficients in intact rock mass. The problem is solved using the method of small
parameters and the finite element method. The elastoplastic solutions are obtained for
mutually influencing underground openings. The mechanisms of concentration of vertical
stresses in a pillar established between mutually influencing openings are determined.
section openings on the assumption of Coulomb's limit equilibrium and varied lateral earth
pressure coefficients in intact rock mass. The problem is solved using the method of small
parameters and the finite element method. The elastoplastic solutions are obtained for
mutually influencing underground openings. The mechanisms of concentration of vertical
stresses in a pillar established between mutually influencing openings are determined.
Abstract
An elastoplastic problem is considered for elliptical, arched, square and polygonal cross-section openings on the assumption of Coulomb’s limit equilibrium and varied lateral earth pressure coefficients in intact rock mass. The problem is solved using the method of small parameters and the finite element method. The elastoplastic solutions are obtained for mutually influencing underground openings. The mechanisms of concentration of vertical stresses in a pillar established between mutually influencing openings are determined.
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