Distribution of horizontal tectonic stresses in the Kovdor ore region

The boundary-element method in 2D setting of task of elasticity theory has been used for research of stress state of rock mass in the Kovdor intrusion taking into consideration its hierarchically-block geological structure. Particularities of stresses distribution have been revealed in the region of apatite-magnetite deposit development by the "Zhelezny" mine, "Kovdorsky GOK" JSC. Zones of maximum tension deformations have been determined in the vicinity of the open-pit under the given boundary conditions and mechanical properties of rocks.