... instability on the operational slopes. fr1 ci 0 metals & mining rupture iron mining geology reservoir characterization diagnosis recommendation brazil government reservoir geomechanics discontinuity scenario geologist united states government geological subdiscipline mechanism...

... interpretation bieniawski geometry displacement classification gem4d rmr classification rock mechanic rupture installation Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón Mendoza (Eds) © 2020 ISRM, ISBN 978-0-367-42284-4 Slope monitoring by vector...

... specimen graph mpa specimen fiber concentration traction strength steel fiber anglogold ashanti strength shotcrete propex fiber uniaxial compression rupture Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón Mendoza (Eds) © 2020 ISRM, ISBN 978-0-367...

... of fractures were identified, and some geotechnical characteristics were described. A quantitative approach, made by obtaining rupture indexes for each of the evaluated movements, identified slope 3 as very dangerous. From a sensibility analysis, it was possible to conclude that the reduction of the slope...

... Abstract This research had the objective to study the geotechnical behavior of a clay mine located in the city of Rio Claro/SP. The studies involved kinematic analyzes in order to define the regions of the slope prone to the occurrence of ruptures, using the software GeoStudio Slope...

... instability nbr 11 geometry reservoir characterization landslide resistance federal university risk management shear strength cnica cohesion risk and uncertainty assessment rio piracicaba university quantification civil rupture Rock Mechanics for Natural Resources and Infrastructure...

... direct influence with rupture mechanisms. Even with low resistance and high weathering degree, anisotropy should always be studied in order to understand its hole in instability processes. This work aims to present 3 open pit mine case studies of ruptures influenced by reliquary structures, and reinforce...

... ABSTRACT Estimation of tensile strength of stones is very important in industry, because its measurement using direct tensile strength test is very difficult. The purpose of this paper is considering relationship between the modulus of rupture with the flexural strength on three types...

... of the fluid and in particular of its compressibility which may vary with the gas content. Unexpected effects of gas on instability (earthquake initiation) are shown, even for faults in progressive (stable) plastic deformation. reservoir geomechanics displacement fluid pressure rupture geomechanical...

... and reduces the unitweigh.The increase of porosity above2%is marked by a significant reduction of the mechanical properties of the granite. The strength of the granite reduces 94% from grade I to grade IV and increases the dispersion of the results. The rupture behaviour is brittle. The tangent, secant...

... rupture potentiels dans le choix des mesures compensatoires à adopter pour gerer le risque residuel à long terme. ZUSAMMENFASSUNG In Frankreich stellt sich derzeit das Problem der definitiven Schliessung des meisten Bergwerke. In manchen fallen ist die Stabilitat der Oberflache nicht garantiert...

.... Standard glass-fiber-reinforced polymer resin anchors are used as housing for 3Dgeophones (Figure 1). The anchor rods act as seismic antennas and simultaneously as stabilizing elements (Borm, G. et al., 1999). Upstream Oil & Gas mechanism hangingwall rupture abutment brittle shear stope...

... qui correspond le mieux au terrain qu'il compte traverser de manière à realiser un metrage maximum avec une vitesse de penetration optimale. Le terrain doit done être connu du point de vue de sa resistance à la destruction, de son mode de rupture (fragile ou ductile) et de sa capacite à user les...

... RÉSUMÉ: Le mecanisme de coupe des roches est etudie à l'aide du formalisme du calcul à la rupture. Des essais dans trois classes de roches sedimentaires rencontrees en forage confrontent la modelisation analytique,: Ils montrent le rôle preponderant joue par la microstructure à cette echelle...

... reservoir geomechanics Upstream Oil & Gas resistance draine forage instabilite amplitude Reservoir Characterization orientation variability rupture breakout paroi calcul mecanique horizontale valeur wellbore breakout argilite fluide deep claystone formation ovalisation...

... 4 mm de diametre dans des blocs de calcairc. L'analyse de ces essais a pennia de definir trois modes de rupture de I'ancrage, qui sont lies principalement a la resistance de la roche a la compression simple et a l'inclinaison de la barre par rapport a la normale a la diacontinuite. ABSTRACT: We...

... for how to analyze slopes in certain geomechanical environments were formulated. RÉSUMÉ: Les mecanismes de rupture de grands pans de rocher ont ete etudies au moyen des model numeriques. Les conditions d'apparition de differents mecanismes de ruptures comme par exemple le cisaillement circulaire ou la...

... ABSTRACT: The Sechilienne slope movement has been extensively monitored for 10 years. The moving volume is estimated to 100 hm 3 and possible partial ruptures could destroy houses and dam the valley. The main features of the movement are opening of vertical fractures, slightly dipping...

..., and by the way Upstream Oil & Gas argilite MPa determination hydraulic fracturing cylinder Claystone extérieure Reservoir Characterization ecrouissage siltite du gard extension que deformation vitesse relaxation multiple fracture essais relaxation rupture mechanical behaviour...

... hydraulique cisaillement hydraulique Upstream Oil & Gas materiau experimental study hydraulic fracturing hydraulic aperture pression eprouvette rupture mesure fracture fracture naturelle remplissage ordre granite par Etude experirnentale du comportement hydro-mecanique de fractures...