Abstract
Introduction. Engineering and geological processes as a result of process operation at deposits often develop at an exponential rate. This problem is specific due to complex and multifactorial nature of the processes which arise when rock mass interacts with mine workings. For this reason engineering and geological information should be obtained step by step beginning with the stage of prospecting and evaluation and proceeding at the stages of construction and operation of mine workings. Research aim is to consider methodological basis to form the databases of geological engineering information about mining facilities at various stages of their life cycle. Research methodology. The types of operations have been described on acquisition and interpretation of engineering-geological information required to detail models of the engineering-geological conditions at every stage. An important factor in creating a reliable and functioning geomechanical model of mineral deposits is survey operations follow-up and gradual transition from regional and provincial engineeringgeological conditions and tectonic structure to engineering-geological conditions of a specific deposits or occurrence. Research results. By the example of chrome field located in the Polar Urals within the Rai-Iz massif, all detail stages of mineral deposits engineering-geological conditions model have been established taking into account the conditioning selected components and factors; possible problems have been described and the results of step-by-step predictive estimates of mine workings stability have been presented. Summary. The research present an example of engineering-geological data detailing by the results of the gamma ray log and caliper logging at the stages of pit slope stability forecast model construction. Obtained in the course of long-term data collecting and processing, the model of Tsentralnoe field has proved its efficiency in the course of mining.
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