STUDY OF THE STRESS-STRAIN STATE OF FIELD WORKINGS DURING THE STEEP-DIPPING VEINS MINING IN ORDER TO PREDICT WORKINGS STABILITY

The paper presents the results of the study of the stress-strain state of field workings located in the zone of influence of stoping operations during the excavation of low- and medium-capacity steeply declining gold veins. Laws of stress distribution on the contour of field workings depending on the distance from the mined-out space were determined. On the basis of the determined regularities the methods for assessing the degree of stability of field preparatory workings and permanent mine workings, undermined by the mined-out space, were proposed.