Authors: A.E. Klykov, E.S. Klykov, G.V. Shirokolobov

Title of the article: Stress condition of rock mass and faulting calculation in the mine working

Year: 2019, Issue: 4, Pages: 17-22

Branch of knowledge: 25.00.20 Geomechanics, rock destruction by explosion, mine aerogasdynamics and mining thermal physics

Index UDK: 622.83

DOI: 10.26730/1999-4125-2019-4-17-22

Abstract: The paper presents the conclusion made on the basis of the analysis of vicinity of ultra deep wells, as well as the analysis of core samples received at their drilling. The conclusions show that the hydrostatic stress field existed during fossilization and connections between rock particles are naturally consolidated. Formation of free barings is due to the “applied” stresses to them, which are equal to the constituent of the rock massif. Pure shear is realized behind the contour of a circular cross-section roadway at the boundary of the elastic zone and the transition to the limit state takes place at stress equal to the coefficient of rock adhesion in the massif, which depends on the depth of the mine working. The proposed formula to calculate the mine working contour shear is associated with dilatancy on this boundary. The results for larger depths differ greatly from the results calculated according to the theory of limited balance.

Key words: tight rock stress extended production dilatancy shear

Receiving date: 03.10.2019

Publication date: 19.12.2019

CITE DOWNLOAD