Abstract
The Baley ore body unites Taseevskoye and Baleyskoye gold mines. The internal structure of Taseevskoye field is defined by the system of longitudinal and cross deformations splitting the Baleyskaya depression into a series of large blocks. One of the main features of open-pit remining of the First ore zone of Taseevskoye field is that mining operations will continuously happen in a zone dangerous in terms of caves. Caving systems in underground mining lead to displacement of some mineral resources to underlying horizons. Hence, the main provisions are defined to study regularities of earth surface displacement within a field. Depending on the correlation of parameters the earth surface is not deformed or deformed as failures, cracks or smooth movements. The development of depression in the direction and speed increases towards the second mining. Thus, within the contours of the designed pit the rock massif is located in the zone of deformations with developed displacement under the influence of underground mining operations. Contours and sizes of dangerous zones are defined for open-pit mining operations in the zone of displacement.
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