... because repetitive explosion experiments on these structures are perilous and challenging. This study uses two case studies to simulate the real-time monitored abutment loading condition and the explosion testing on such steel-reinforced underground structures. A BIP RA design's performance and failure...

...-dependent deformation pillar deformation loading condition geometry slender pillar vertical stress ARMA 21 1118 Simulation of time-dependent deformation of brittle rock pillars using a grain-based time-to-failure model Mingzheng Wang. Bharti School of Engineering, Laurentian University, Sudbury...

... reservoir geomechanics einstein einstein hh fracture coalescence upstream oil & gas biaxial loading geometry reservoir characterization secondary crack uniaxial biaxial flaw loading crack coalescence loading condition uniaxial loading munjiza crack initiation hydraulic...

... displacement proceedings Symposium vertical stress US government complex reservoir instrumented pillar Upstream Oil & Gas calibration roof sag rib displacement coal seam gas Ground Control loading condition average roof sag fracture strength field observation instrumented site coal-mass...

... hydraulic fracturing prefabricated flaw AE event fluid pressure geothermal reservoir data acquisition system international journal Upstream Oil & Gas acoustic emission initiation Einstein triaxial loading condition experiment Gonçalves da Silva Coalescence propagation...

... loading condition Fig. 1. Storage cavern system in rock salt mass with its essential components storage cavern, cavern well, and surface structures, KBB Underground Technologies 1. INTRODUCTION The upcoming gradual exit from the carbon-based power supply (decarbonisation) in Germany implies...

... propagate. Bobet (1997) used molded gypsum specimens with either open or closed prefabricated flaws under uniaxial and biaxial loading conditions to observe the crack initiation, propagation and ultimate coalescence of the specimens. Bobet (1997) described several significant observations, the most...

... loading condition during the test. It should be noted that most experiments support the conclusion that the Biot's coefficient (a) for failure of rocks is unity. And that, the Biot's coefficient for failure processes has no particular connection to the effective stress coefficient (Biot's coefficient...

... in the fields. Upstream Oil & Gas failure mode sandstone block laboratory experiment Reservoir Characterization Simulation Castlegate sandstone anisotropic stress loading condition deformation structural geology triaxial compressive test sandstone hole failure stress condition Wellbore...

... case studies and drew preliminary conclusions pertaining to correlations between mining, geologic conditions and support requirements (1). Due to limitations in site specific data and analyses techniques, uncertainties remain to-date with actual loading conditions and failure mechanism at individual...

... to the loading conditions. For example, the Brazilian test, as an indirect tensile test, is commonly conducted to determine the tensile strength of rock. The failure of the specimen is expected along the loading diameter into two halves, but another failure mode can occur near the loading boundary. Moreover...

... degradation dilatation wellbore integrity Wellbore Design material response MPa loading condition strain rate fracture energy mechanisms-based fracture model single element mesh uniaxial compression fracture fluid modeling equation of state geological material permeability Zubelewicz...

... and compared to the commonly used correlations for rock formations. The performed analyses and comparison with the field pile load test results provided a better understanding and good information about the drilled shafts performance under vertical loading condition in such formation. The analyses carried out...

... property [3, 4]. The Mohr-Coulomb strain-softening (MCSS) constitutive model may then be used to represent quasi-brittle material failure during unstable loading conditions [5]. The program also calculates the kinetic energy released and ultimately damped out during the simulation. A series of single...

... is to investigate the mixed modes I (tensile) and II (shearing) fracturing mechanisms of Brisbane Tuff rock and prepared concrete samples using Semi-Circular Disc (SCD) and Cracked Chevron-Notched Brazilian Disk (CCNBD) specimen geometries. In order to create various mixed mode loading conditions, the chevron notch...

... strength compression reservoir characterization end constraint uniaxial compression contact loading condition prism specimen stress-strain curve reservoir geomechanics rock specimen simulation peak strength constraint cylinder specimen post-peak behavior ideal loading condition...

... various loading conditions. Initially, aggregates of five different shapes and four different sizes, assembled at a certain volume ratio, were subjected to compression tests under constant confining pressure. The results indicated that: (i) cracks initiate more easily in larger particles...

... the confining stress and perforating angle increased, the initiation from perforations became difficult and finally initiated from weak cemented position. experimental result maximum tensile stress loading condition numerical analysis hydraulic fracture fracture propagation upstream oil & gas...

.... It is evident that these empirical solutions are employed exclusively for shallow excavation as the loading condition for such solutions are based on Terzaghi soil theory (TST) (Eq. (1)) [2-5] and compared to shallow numerical analysis [6] and/or shallow in-situ surveyed data [7-8]. These approaches can...

... single fracture Upstream Oil & Gas Existence interface wave velocity region polarization velocity analysis wedge wave external load intersection coupling fracture S wave loading condition transducer 1. INTRODUCTION Fracture networks provide hydraulic connectivity for fluid flow...