METHOD FOR CALCULATING THE STABILITY OF A LEDGE WITH AN EXTENDED CRACK IN THE GRAVITATIONAL AND TECTONIC STRESS FIELD

Abstract

Methodological foundations have been developed for the formation of ledges and sections of sides on the limiting contour of quarries under conditions of a gravitational and tectonic stress field, geomechanical calculations of the stability of ledges and sections of sides in a gravitational and tectonic stress field at various angles of incidence and properties of the filler of an extended crack have been carried out. Based on the results of the research, a methodology has been developed to study the effect of tectonic stresses on the stability of ledges and sections of sides and computer programs in the Excel editor to calculate the conditions for the occurrence of tectonic movements of the instrument array along an extended crack and the limiting parameters of the ledge or group of ledges, depending on the strength properties of the extended crack, its angle of incidence and the magnitude of the maximum main stress when it is oriented according to the sloping part of the side.