... University, Melbourne, Victoria, Australia ABSTRACT: A series of uniaxial compressive strength tests were performed to study the deformation charac- teristics of bedded sandstone with bedding layers in different orientations. Test results revealed that the samples with bedding layers oriented in smaller...

... particularly useful for imaging narrow and roughly planar features of diverse orientations. Introduction POSIVA Oy conducts bedrock investigations at the spent nuclear fuel final disposal site at Olkiluoto, in western Finland. The purpose of these efforts, which include a significant R&D component...

... but conditioned by statistical data from borehole image interpretation and outcrop observation. Statistical analysis of a natural fracture system primarily involves the identification of fracture sets (Hammah & Curran 1998) and the estimation of geometrical properties, such as orientation, spacing, density...

... (TLS), digital photogrammetry, and precise real time kinematic (RTK) – global positioning system (GPS) surveying in characterizing rock mass structures. hydraulic fracturing resolution reservoir geomechanics fracture pattern accuracy Wellbore Design Rock Structure orientation Liu...

..., aperture and roughness, in the largest underground oil storage caverns in China. Based on the geometry relationship between inclined borehole and joints, the dip angle and dip direction has been identified by 3 points' depth and orientation, and the real aperture has been figured out by depth...

... properties of cataclasite-like material and to study the shear behavior of BIM-rocks an extensive laboratory program was carried out. Artificial block-in-matrix samples were fabricated for direct shear tests. Models with six different block orientations, related to the shear direction were created...

.... Subsurface investigation is cost intensive and time consuming. Therefore the implementation of a cost- benefit analysis can help to optimize the exploration program (Swoboda 1999). At this point a refined and accurate model should be achieved, displaying magnitude, orientation and any relevant geological...

... points. This advanced evaluation enables a correlation of defor- mation directions with the orientation of rock mass layers. 2 MEASURING CONDITIONS AND EVALUATION Convergence measurements are carried out by using mechanical or optical methods to determine the dis- tances between pairs of points...

..., Iran, Italy, Korea, Spain, Sweden, Turkey, UK, and the USA. metals & mining cause-effect plot interaction matrix Reservoir Characterization orientation Rock Engineering System reservoir geomechanics slope instability application Rock Mech slope failure rock mass Environ...

... modeling and field test. Finite element code ABAQUS was employed for the analysis of stress distribution at transverse notching tip and effect of transverse notching on fracturing initiation condition and orientations, which was verified further by the field test. Transverse notching plays an important...

... geomechanics orientation borehole intermediate principal stress repository Magnitude ISRM-Sponsored International Symposium on Rock Mechanics: Rock Characterisation, Modelling and Engineering Design Methods 1 Comparison of the minimum horizontal stress from overcoring and hydraulic fracturing...

... structure features, magnitudes and orientation of far-field stresses of planned project area shall be studied in detail. The hydrofracturing measurements has been done in five boreholes of about 140m deep; for the scattered measurement results, it is hard to find out the intrinsic relationships between...

... of two angles describing the orientation of the rock bedding. Bedding has an important effect on the behaviour of such type ofrockssinceitcontrolsbothitsmechanical behaviour (e.g.,highestcompressibilityindirection perpendicular to Upstream Oil & Gas criterion structural geology Reservoir...

.... Analyzing the experimental data on the basis of the Mohr-Coulomb failure criterion, the brittle-ductile transition properties under different loading orientations are brought out, and the relevant brittle-ductile transition confining pressure are predicted by failure criterion. The results show...

... reservoir geomechanics strength axial strain radial strain different temperature structural geology volumetric strain loading orientation MPa Tournemire shale Reservoir Characterization orientation anisotropic rock investigation mechanical behaviour bedding plane Upstream Oil...

... are identified on laser images, and a method to quantitatively detect the water flow has been studied. Using of laser 3D point cloud to generate the best-fit plane of fractures and then calculating orientation of fractures have been used in the tunnels. The results show a digital geological map based...

... the expected can be a change in the ground conditions ahead of the face. It is meanwhile well known that trends of displacement vector orientations can be used to predict changing ground conditions ahead of the face (Schubert & Budil 1995, Steindorfer 1997, Jeon et al. 2005). The methods for monitoring data...

... ABSTRACT A constitutive coupled plasticity-damage formulation based on fabric tensor and discrete approach is proposed for modeling inherent and induced anisotropy in cohesive-frictional geomaterials. Fabric tensor is used to characterize the inherent orientation-dependent properties...

... relationship between two corresponding points in a stereoscopic image pair is used to determine the position of the original object point in space. This requires accurate information on ? the image formation process of the camera (interior orientation) and. ? the camera position and angular orientation when...

..., with an average value around 145 MPa. 2.2 Modes of rockbursts Following Kaiser and Maloney (1997), the rockbursts that occurredintheQinlingtunnelsbelongt reservoir geomechanics strength rock strength excavation Reservoir Characterization orientation schistous structure Upstream Oil & Gas...