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The transition to mining benches with transverse panels from top to bottom within the boundaries of steeply inclined layers does not allow transforming the results of mininggeometric analysis sequentially for each individual stage of mining into a calendar schedule of mining operations. Therefore, a model is offered for converting the results of mining-geometric analysis into a calendar schedule of mining operations with sequential mining of benches from top to bottom using phased volumes of overburden rocks and o...

It is advisable to conduct mining operations in the conditions of the ultimate state of the opened massif with an increase in the pit wall slope angles below the limit of effective use of combined motor-conveyor transport in the cleaning-up zone of deep and ultradeep open pit mines to the final depth. Such a design of the pit walls is achieved when mining benches from top to bottom within the boundaries of steep-slope layers with the use of in-bench loaders in the cleaning-up zone. The conditions for the occurrenc...

Ensuring the stability of underground construction remains a challenge in terms of coal mining. The implementation of effective coal mining technology facilitates high rates of operations and simultaneous exposure of large-scale rocks. This problem is relevant both for Ukraine, where underground coal mining is the main one and for Kazakhstan, where the transition to combined open-underground mining is also underway. Supporting the mined-out space under complicated geological conditions requires an in-depth analysi...

The studies were performed using risk management tools during the operation of combined types of transport in open pit mining [1-5]. The goal is timely and efficient risks management during the rock mass transportation. The risks in study were identified while using combined types of transport at the open pit mining facilities [6]. Qualitative and quantitative risk analyses were carried out for their further effective management and monitoring. Information on the identification, classification, qualitative and qua...

Schemes of cleaning-up deep iron ore deposits using open pit mining method from mining-capital operations and land saving perspective are analyzed. It was established that the cleaning-up of border reserves with a pit side separation is expedient in the operation of shallow open pit mines. Cleaning-up of open pit mines with an increase in the resulting angle of slope of the side at the partial abandonment of transport communications is expedient at the transition stage from the auto truck-rail transport to the aut...

A dynamic method has been developed for optimizing reload horizon of a cyclic and continuous technology complex (CCTC) with a combined road-conveyor-rail type of transport for round open pit fields, providing a rational depth of rail transport installation together with economically viable horizons for the location of the concentration horizon and reload from steeply inclined conveyors into the inner mine railway transport. Mining in border and deep zones of open pit mines is conducted in constrained conditions. C...

Schemes of mining and construction operations have been developed for inclined trenches on the open pit edge, where transport platforms and safety benches using the drilling and blasting method of rock mass preparation are located. The volume of mining operations is calculated taking into account the dislocation of a part of the open pit edge of the deep open pit mine for placement of loading points at the bottom of inclined workings. A new scheme of conducting mining operations implementing steeply inclined conve...

A regulation of the mining operations mode during a new phase of open pit mining deep lying minerals through implementation of temporary non-operating open pit edges on many deep open pit mines made it difficult to extract minerals. Innovative technologies of working zones development along steep open pit edges have been tested at the pre-design stage with comparison of the obtained mining schedules with the design schedules based on the analysis of methods of controlling mining operations mode and their existing ...