A METHOD FOR CALCULATING LOADS ON MINE SHAFT LINING

Abstract

A method for calculating the stress-strain state of the lining of mined-out area at any mechanical parameters, allowing to take into account any displacements of the contour of excavated rock surface before it contacts with the lining is proposed. The method is based on the use of the intact rock mass stiffness matrix formed prior to mining. Modeling of the cavity growth and joint deformation of the lining and rock mass surrounding the excavation opening is performed using iterative procedures of the methods of initial stresses and initial strains. An appropriate algorithm and software complex for calculating loads on the lining of mined-out area have been developed.