Engineering-geological substantiation of solutions on strengthening and stabilizing hard rock mass in open-pits
Development of deep and super-deep open pits sets up increased requirements to to safety of mining. Case study of the Kovdor baddeleyite-apatite-magnetite deposit has shown that preliminary carrying out of engineering-geological and geomechanical zoning allows increasing the accuracy in predicting risks of open-pit construction elements instability at different stages of the mine development and life. It also allows verifying a complex of measures to providing safe mining through strengthening and stabilizing pit benches and slopes. The enterprise thus has real opportunity of the adequate estimation and management of risks due to the preliminary planning and realization of the especial measures.