... excavation televiewer geological subdiscipline operator drilling operation reservoir characterization breakout assessment information ddh 001 mining mining science orientation magnitude seismicity international journal orebody rock mechanic ARMA 24 54 Proactive Identification of Adverse...

... potency potency geologist reservoir characterization hazard rockmass deformation algorithm sequence malovichko optimization seismicity criteria iteration calibration mechanism application mdl modelled seismicity assessment gradient orebody ARMA 24-309 Calibration of rockmass...

... ABSTRACT: The Malmberget iron ore mine owned by LKAB (Sweden) is one of the largest iron underground mines in the world. At present 10 orebodies are being mined, with seismicity being a known issue for several of them. The seismic system consists of 143 geophones, of which 36% are triaxial...

... mechanism sensor proportion seismicity tri-axial sensor orebody geophone proceedings seismic monitoring hydraulic fracturing machine learning malovichko waveform overview average proportion mendecki symposium information meyer objective ARMA 24-0785 Seismic monitoring systems in mines...

... ABSTRACT: The Merensky (MER) orebody in the Bushveld Complex in South Africa has been mined extensively. Regional and local pillars, zones of unmined ground, potholes, and remnants were left in-situ. 15 to 400 m beneath the MER orebody, the UG2 chromitite orebody is currently being exploited...

... ABSTRACT Hydraulic fracturing is becoming increasingly used for orebody preconditioning in cave mining. This approach aims to enhance caveability, cave propagation and resource recovery, improve rock fragmentation, and mitigate the seismic hazard during caving operations. To date...

... ABSTRACT: Vale Canada Limited has been operating underground mines in the Sudbury basin for over a century. The maturity of the operations is reflected in the amount of ore that has been mined and the number of associated sill pillars which have been formed in various orebodies at different...

... quartzite international journal reservoir geomechanics mining drive investigation Reservoir Characterization Upstream Oil & Gas mechanism tangent modulus specimen excavation pillar stress analysis rock mass stress level structural geology Orebody Rock mechanics footwall quartzite...

... of the causes and controls of the deformation, which were poorly understood. It was hypothesized that the hydrothermally altered materials hosting the orebodies form controls on ground behavior because they affect the mechanical properties of the rock mass. To investigate this hypothesis, 3-D material domains...

... Abstract: Legal license boundary restrictions and economic considerations for extraction of vein type iron orebody in Erzincan/Bizmisen area of Turkey limit the overall production by open pit mining. Based on overall Stripping Ratio (OSR) assessments, ore production is decided to proceed...

... subsidence of 22.5 cm was observed at the surface. Backfilling was found to eliminate subsequent deformation and subsidence from occurring. The extraction of the upper orebody was found to influence deformations in the lower orebody. Finally, a subsidence profile was constructed to show the subsidence at all...

... Abstract: A precise delineation of geometallurgical domains in an orebody can lead to improved production planning and comminution efficiency. This requires an accurate characterization of the variability of ore response to comminution and breakage force. Experimental analyses have shown...

... a DEM UDEC-Trigon method is introduced and preliminary results presented. 1. INTRODUCTION Cave mining methods generally include mining operations where after undercutting the orebody caves naturally based on gravity flow; these methods include block caving, panel caving and sub-level caving [1...

... Abstract: Structure characteristics of rock and orebody in deep borehole are obtained by borehole camera technology. Based on theory of metallogeny and geostatistics, distribution rules of different kinds of discontinuity are summarized and relevance analysis is carried out between...

... ore extraction on industrial scale commenced about a century ago. This study seeks to increase the understanding of the intrinsic characteristics of the rock mass governing deformation and caving activities. Rock mass characterizations were done in two selected orebodies – Printzsköld and Fabian. Two...

... progress upward stress condition Reservoir Characterization west ore body crown pillar thickness elevation cut 11 displacement lake fault pillar cut 13 Upstream Oil & Gas deviatoric stress Orebody principal stress ARMA 12-626 Geomechanics Study of West Orebody Crown Pillars at Coleman...

... ABSTRACT At Vale’s Coleman mine in Sudbury, Ontario, Canada, a diminishing sill pillar exists in the Main Orebody immediately below a previously mined out area of neighbouring Xstrata’s Fraser Mine. This sill pillar is going to be mined by the longhole / blasthole stoping method...

... to be caved. The main reasoning behind the imposed block height constraint is to ensure that the orebody is able to cave easily, that dilution entry is minimized and that the drawpoint brow integrity is maintained until all of the economic ore above is extracted. Benchmarking studies conducted by Florez...

... orebodies with the majority of the higher grade mineralization orebodies having already been mined out. The remaining reserves and resources are concentrated in the 3 Shaft remnants, Deep 400 orebody, Up-dip 402 orebody, 403 orebody remnants, 461 orebody, and the recently discovered 649 orebody, Figure 2 [2...

... ABSTRACT: 153 Orebody at Coleman Mine is a narrow vein stringer dipping between 30 to 70 degrees. Current mining extends from the 4250 level to 5100 level. The primary mining method is mechanized cut-and-fill, although drift-and-fill is also used in wider sections of the ore zone. The ore body...