... the monitoring for the undermined rock mass. The mining method in a protective pillar the authors propose allows increasing reserves of the first mining stage by 76.9% and avoiding decrease in production volumes when mining operations terminate. Introduction The Oleniy Ruchey apatite-nepheline deposit...

... of a recommendation block for safe mining operations, taking into account the geomechanical situation forecast data. The solution of these problems is considered on the example of a section of the Khibiny apatite arc, within which underground and open mining is carried out in the zone of mutual influence...

... be used for displacement control in mining and underground construction. 1. Introduction When developing salt and potash deposits, the main objective of ensuring safe conditions for mining operations is to preserve the continuity of the water-blocking strata that separate overlying watered layers...

... Abstract In the evolution of mining operations that exploit extensive orebodies to depth there inevitably comes a time where the economics of open pit mining reach their break-even ratio. The consideration of underground operations becomes increasingly important to sustain mine production...

... the Oleniy Ruchey deposit by underground methods in the near future. The underground mining operations will be restricted by protecting pillars because of nearby open-pits. High horizontal stresses and brittle rock have a significant influence on mining operations and indicate rockburst hazardous conditions...

... drilling operation Reservoir Characterization power relation model observation time knowledge management Upstream Oil & Gas system failure data structural geology laplace trend test statistics strength drilling machine availability mining operation reliability system intensity...

... batters 10 m in height with 5 to 6 m wide berms giving an overall slope of 30 . Although now coal is mainly mined by open-pit mining operations, previously it was also extracted by under- ground operations. The low ratios of recuperation by the preceding underground mining allow the present surface mining...

... spatial measurement operation rock mass mining operation deformation metals & mining tilt building react tilt plane exploitation subsoil scientific research consequence longwall panel tremor tiltmeter mining exploitation powerful tremor underground mining Abstract...

... by the mining excavator and weather conditions. It was recommended that for mining operations at the top part of the deposit to the depth of 6–8 m, the excavator should be located at least 3m from the slope edge. The other recommendations concerning the geotechnical instructions for mining operations were...

.... 1 Introduction The Legnica-Głogów Copper Basin is the area where the underground copper mining operations are usually associated with a high seismic activity. For better understanding of this type of seismicity, the stronger tremors' focal mechanisms are investigated on the routine bases...

... Abstract During the longwall mining operations it is possible appearance of mining stoppage for a period of two or more days. Basing on experience each longer stoppage is being causing caving and extremely difficult restarting of the longwall mining operations. Analysis of stress...

... investigation mining mining operation sucha member Eurock 2005 -Impact of Human Activity on the Geological Environment - Konecny (ed) © 2005 Taylor & Francis Group, London, ISBN 04 1538 042 1 Investigation of rock mass destruction during mining ~ Petros & E. Jirankova Sa - Technical University of Ostrava...

... ABSTRACT: More intensive mining development caused large failures adversely affecting the environment to become more frequent. To eliminate such failures and to mitigate harmful aftereffects of mining operations there have been developed and applied some methods of mineral resources recovery...

... Bedingungen der Formierung der technogenen Seismizitat untersucht und ist die experimentelle Bestatigung gegeben. The effect of the modern mining operations on the environment has gained qualitatively new character. It is not a direct effect of open-pit mining, waste dumps and beneficiation tailings...