... Abstract The development of Turkey’s deepest coal mine is currently underway to the proposed depth of 1200 meters (m) below surface at the Soma Coal Basin. An 11 m intersection forming an access way from one of the main declines was excavated at approximately 900 m below surface collapse...

... orientation major feature intersection stress load Reservoir Characterization underground space main fault project area ductile environment stress condition Upstream Oil & Gas Earthquake stress state horizontal stress component tunnel deformation stress level Magnitude ?? ABSTRACT...

... plane intersection Reservoir Characterization Upstream Oil & Gas rotatability free face vector Mauldon Wellbore Design displacement rotation space rotation point Artificial Intelligence rock mass Goodman rotation axis orientation kinematic analysis rotation tetrahedral block...

... of flow test, numerical simulation and theoretical solution. Non-linear fluid flow characteristics through a fracture intersection were captured and analyzed. Numerical simulations by solving the NS equations revealed a dramatic change of streamlines within the intersection since Re exceeded 10...

..., pillar instability averaging 0.7m deep, intersection spalling, roof collapse, and stope collapse. The latter two being localized observations. A K o (horizontal/vertical stress) ratio between 0.8–0.9 was found to adequately capture the observed depths of failure for the pillar and intersection models...

... height mining method operation Thickness bord hangingwall tendon tensile zone metals & mining support design support requirement Bushveld Complex pillar operation reef intersection tensile height Design Methodology Case studies of tendon support design in Bord and Pillar...

... operation steel bar Reservoir Surveillance wellbore seismic compression strength Fluid Dynamics porous mass concrete investigation mass concrete rockfill dam flow in porous media Upstream Oil & Gas reinforcement steel bar intersection shale injection fracture transmissivity micropile...

... ABSTRACT: A design methodology is developed based on analysis of the practical consequences for intersection /junction of underground openings. Mechanism of interaction support with rock mass is simulated based on theoretical solution. Empirical correction factors are introduced...

... system was encountered. cavern rock support Computation crown settlement rail transportation mf faido shotcrete construction tunnel Reservoir Characterization steel stability excavation Fault Zone ground transportation intersection cavern intersection layout steel mesh support...

...-track tunnels, running side by side, and involves the construction of numerous and articulated connections as well as train cross-overs, shafts and stair tunnels linking the stations to the surface (Figs. 1 & 2). ground transportation numerical analysis intersection rail transportation...

... Upstream Oil & Gas linear element hydraulic fracturing rock massif hydrogeological process intersection flow in porous media dimension boundary condition incompatible connection matrix equation compact rock massif compatible connection Groundwater Flow requirement numerical...

... Reservoir Characterization metals & mining Artificial Intelligence risk management spatial reasoning orientation geological structure database rock engineering solid waste management Rock mechanics BIS GIS Engineering world system information intersection Visualization Information...

... method. Reservoir Characterization Martin intersection cube thin section Upstream Oil & Gas microcrack Lac du Bonnet granite granite p-wave velocity orientation variation MPa grey granite s-wave velocity polarisation borehole extension tunnel face 2 Eurock '96, Barla (ed...

... Reservoir Characterization Upstream Oil & Gas roughness fracture center fracture plane geometric conceptual model intersection Dershowitz hydraulic fracturing fracture intensity conceptual model fractured rock application intensity transmissivity deformation rock mass assumption...

... Rock mechanics size distribution application scan-line technique discontinuity fracture rock mass means Upstream Oil & Gas dimension stone fracture analysis intersection Marble Quarry mechanics Eurock '93, Ribeiro e Sousa & Grossmann (eds) © 1993 Balkema, Rotterdam 90 54103396...

... plane grout transmissivity intersection Tsang complex reservoir information Stockholm conductivity aperture study fracture permeability stress change rock mass experimental technique total flow Eurock '93, Ribeiro e Sousa & Grossmann (eds) © 1993 Balkema, Rotterdam 90 54103396...

..., mining method permitted almost total (> 90 percent) removal of coal from the panel. Reservoir Characterization ventilation entry ground movement structural geology Pillar Extraction Mining metals & mining underground pillar extraction mining extraction intersection convergence...

... be possible to forecast the exact number of joints in a given volume of rock mass. linear observation surface intersection confidence limit rock mass homogeneous rock mass Modeling & Simulation rectangle starke einer kluftschar mean attitude expression scanline borehole grossmann 1988...