ESTIMATED ANALYSIS OF THE NATURAL STRESS FIELDS COMPLEXITY IN EASTERN SAYAN GOLD-ORE VEIN DEPOSITS

Abstract

The article presents the main results of studies of initial stresses of three gold vein de-posits located in the Eastern Sayan Mountains: Zun-Kholbinsky, Barun-Kholbinsky, Konevin-sky, in the depth range of 120…940 m. Insitu measurements by the slot unloading method and reverse calculation of primary stresses on the basis of 49 rock pressure cases were made. Key geomechanical factors were determined, and average statistical parameters of natural stresses depending on the combination of these factors were estimated.