Oil shale is a kind of potential alternative energy source for petroleum and has attracted the attention of energy researchers all over the world. Borehole hydraulic mining has more prominent advantages than both conventional open-pit mining and underground mining. It is very important to attempt to use the borehole hydraulic mining method to exploit underground oil shale. The nozzle is the key...

Purpose is to develop efficient scheduling excavate steep-grade iron-ore deposits using near-vertical layers relying upon production practices by an open pit of Poltava Mining-and-Processing Integrated Works (MPIW). Methods. The goal achievement involved system analysis openwork for means in MPIW; the process was structured from viewpoint decision-making under uncertainty. Findings. New methods...

Purpose. A methodology development for predicting the geomechanical situation when mining an ore deposit with steep-dipping layers, taking into account uncertainty in determining rock properties, which is a consequence of mass heterogeneity. Methods. The assessment open-pit wall stability based on combination numerical simulation stress-strain state (SSS) and probabilistic analysis. finite elem...

PT. Bukit Asam Tbk is an open-pit coal mining company in Muara Enim, Soutgh Sumatra. In activities, slope stability analysis carried out to evaluate the mine order create a safe process. Several types of failure are associated with geological structures. This research was conducted identify type landslides low wall area Pit X and determine factor based on discontinuity data using scanline metho...

Sustainability of the open pit mining and technical system (MTS) is one its key goals in changing conditions external internal environment. All MTS’s subsystems must function concert to achieve this goal. The structure MTS formed by many elements, which are evaluated a significant number indicators. A comprehensive assessment for all possible indicators complex time-consuming task. However, eac...

This paper is a new concept to increase the safety and mining conservation on PT-X PT-Y with no boundary gap between two areas. To optimize coal recovery as basis of supporting conservation, companies needed adjust production in terms avoiding technical problems at time process due rock structure seam border were same. plans produce 2 million tons coal, but government only approved 1 tons, whil...

the uncontrolled spread of illegal artisanal small-scale gold mining (asm), popularly termed “galamsey” in ghana, has, for decades, impacted adversely upon water bodies, soils, wildlife, human health, and safety. a lack of understanding, however, of the types of galamsey, their operational attributes, and their relative impacts has unfortunately hindered an effective policy response despite num...

Recently, the mining industry has introduced renewable energy technologies to resolve power supply problems at mines operating in polar regions or other remote areas, and to foster substitute industries, able to benefit from abandoned sites of exhausted mines. However, little attention has been paid to the potential placement of floating photovoltaic (PV) systems operated on mine pit lakes beca...