... et al., 2017). Hence, rock mass damage is caused by the initiation, accumulation and growth of stress-induced cracks or existing fractures in rock mass (Cai et al., 2001). hydraulic fracturing reservoir characterization upstream oil & gas artificial intelligence neural network metals...

... simulation particle explosion rock mechanic journal roadway metals & mining diameter coal seam quantity boundary variation requirement jwl equation explosive quantity Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón Mendoza (Eds) © 2020 ISRM...

... that the microwave treatment could considerably promote the fragmentation degree(Batchelor et al. 2017). specimen reservoir characterization upstream oil & gas reservoir geomechanics strength fg specimen hydraulic fracturing metals & mining fangshan granite artificial intelligence microwave...

... reservoir characterization mechanism specimen reservoir geomechanics electromagnetic radiation intensity metals & mining fracture emission electromagnetic emission poynting vector dipole equation inversely proportional expression pengcheng wei oscillator hertz oscillator cheng wang...

... compression strength batugin metals & mining orientation bachat earthquake instrumentation upstream oil & gas kuzbass figure 4 lomakin earthquake crust hypocenter moscow journal Instrumentations, monitoring and seismic behavior of rock masses 133_14473.indd 1259 24/08/19 8:17 PM...

... Abstract With the aim of better understanding the mechanical behavior of rocks solicited by underground excavations, the rock mass response to mining was studied based on a comprehensive approach. For this purpose, a deep area of the metal mine of Garpenberg (Sweden) was instrumented...

... management and quality control of this support type. structural geology msg figure south african colliery coal mining metals & mining safety executive roof bolting guideline risk management torque relation anglogold ashanti gem4d software brasileira excavation limitation...

... creation reservoir characterization manifestation mining operation diameter metals & mining monitoring operation displacement sensor criteria Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón Mendoza (Eds) © 2020 ISRM, ISBN 978-0-367-42284-4...

... physical, mineralogical and mechanical data to better support geotechnical projects. metals & mining shotcrete formula upstream oil & gas barricade reservoir characterization strength shotcrete application stope equation stability application paste backfill compressive strength...

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... to the quality of the rock mass (Hoek, 1980) and to an operational problem in the crushing. metals & mining iron mining fragmentation reservoir characterization itabirite factor modulus elasticity compact hematitite lithology sample elasticity variation reservoir geomechanics compact...

... reservoir geomechanics characteristic efficiency rock mechanic non-contact measuring system figure 3 metals & mining journal application figure construction stability cae stereo cameratm Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón Mendoza...

... measurements available since the last calibration. cavity reservoir characterization modeling copper mining reservoir geomechanics south america government metals & mining east-west structural geology chile government subsidence crater calibration breccia tourmaline breccia chlorite...

... geology reservoir characterization extraction castlegate sandstone operator strength maleki university book cliff coal field blackhawk formation maleki 2014 upstream oil & gas metals & mining gateroad seam rock canyon seam Rock Mechanics for Natural Resources and Infrastructure...

... formula (Malan & Napier 2011). This empirical approach does not consider the effect of alteration zones. ‘Unexpected’ pillar failure is defined as pillar failure in areas where this classical design approach predicts a large factor of safety. metals & mining pillar strength reduction ug2...

... impacts of ore dilution. structural geology excavation cohesion reliability upstream oil & gas reservoir characterization anglogold ashanti stope table 1 overbreak layout metals & mining instability strength criterion implication mining layout figure dilution pillar...

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... crown pillar wedge classification tunnel layout stability metals & mining intersection reaction curve pillar engineering rock mechanic Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón Mendoza (Eds) © 2020 ISRM, ISBN 978-0-367-42284-4...

... constitutive model. reservoir characterization south african institute journal triangular pillar metals & mining pillar investigation pillar strength platinum mining strength formula simulation specimen maritz equation rock mechanic wagner rectangular pillar pillar geometry malan...

... during a seismic event. amplification fracture instrumented d-bolt mpbx upstream oil & gas geophone shotcrete rock mechanic intersection lkab metals & mining displacement deformation frequency anchor symposium reservoir characterization excavation sensor borehole...