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Fundamental and applied issues of mining

2019 year, number 1

STRESS-STRAIN STATE OF A ROCK MASS WITH A CRACK IN THE ROOF

A. A. Krasnovsky
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Напряжения, смещения, задача, граничные условия, массив пород, трещина, система уравнений, решение, Stresses, displacements, problem, boundary conditions, rock mass, crack, equation set, solution

Abstract

The influence of a crack formed in the opening roof on stress-strain state of the rock mass is considered. The relationships determining displacement and stress components at the boundary of an opening with rectangular shape, on contact lines of the layers and on the line containing crack are written. The examples of numerical implementation are given. The analysis of the obtained results is carried out.