... ABSTRACT: Conventional borehole tensor strainmeters (BTSM) based on the measurement of inner-diameter changes of strainmeters by four capacitance gauges had been developed to measure three strain-components in the horizontal plane. The other three strain components are also important...

..., undulating, planar, stepped, stepped/smooth plane, rough stepped, stepped undulating, polished, planer rough, and others. Direct shear test at three constant normal load are carried out, and joint characteristic curves are developed to determine their mechanical properties. All joint sample was collected...

... coefficient geoscience injection gradient permeability zang geometry operation geothermal operation plane circulation 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG Stress and seismicity related to cooling of geothermal wells Arno Zang1,2, Hannes...

... For stability analysis of rock slopes (wedges, plane failure, toppling, etc.), the data chosen for the calculation concerning the spatial orientation of each of the families (dip and dip direction) are decisive. Moreover, the orientation and characteristics of the families influence the stability of a slope...

... displacement structural geology space agency reservoir characterization evolution modeling doi national taiwan university simulation landslide basal plane itasca consulting group displacement vector plane variation universal distinct element code cleavage gsd figure 4 surficial displacement...

... Slide2 was used to perform a parametric study on the Generalized Anisotropic strength model for a hypothetical rock slope. The key contributors to determining if a rock mass is moderately anisotropic were the shear strength (cohesion only) of the weak plane was a quarter or less of the intact strength...

... characterization reservoir geomechanics geologist united states government geological subdiscipline fracture salton sea geothermal field enhanced geothermal system preferential orientation microseismic catalogue quantify plane seismicity interaction plate tectonics earthquake discrete fracture...

... ABSTRACT: Seismic repeaters (i.e. seismic events with highly similar waveforms) have been observed in the deep mine of Garpenberg, Sweden. In natural seismology, repeaters are commonly associated with the presence of aseismic slip (i.e. creep) on fault planes, loading seismogenic asperities...

...-values computed from multiple seismic events simulated on the fault plane demonstrated that the b-value decreases with the reduction of the effective normal stress, showing consistency with the characteristic of induced seismicity in the field. This implies the possibility of applying the simulation...

... can reproduce the geometric properties of outcrops, and provide a useful intermediary for rock fracture investigations. Here we develop and apply a method for fracture mapping that employs a discontinuity set extractor (DSE) program to capture fracture planes from point clouds and a spherical scan...

... application geologist proportion pbp geology goodman 1994 vbp engineering geology torino napoli bimrock bimsoil grid volumetric block proportion strength deviation outcrop plane 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG Application of the point...

... (representing a repository drift) and six monitoring boreholes. The experiment borehole intersects tectonic fault planes and a major fault zone; its air humidity is controlled to simulate open and closed drift phases. The rock mass damage evolution is recorded by manifold techniques, including borehole...

... ABSTRACT: There is an interesting discussion amongst experts about the term discontinuity in the geomechanical rock mass classification for subsurface works applications. This definition, covers the formational planes, like bedding planes and foliation planes, moving fractures and the joints...

... government geological subdiscipline tunnel reservoir characterization configuration geology reservoir geomechanics tran manh conformal mapping plane procedure unlined tunnel computation rock mechanic mapping coefficient tunnel exterior arbitrary geometry austria government artificial...

... ABSTRACT: The non-stationary trend of rock joints significantly affects the shear strength of rock joints. Taking the least square fitting plane of a rock joint as a reference plane, two trend direction parameters α and β of the rock joint are proposed to characterize the non-stationary...

... reservoir geomechanics fpz fracture propagation orientation geologist europe government geological subdiscipline mechanism propagation sandstone prague ae characteristic hydraulic fracturing reservoir characterization fpz initiation estimation interpretation plane cotta sandstone czech...

... ABSTRACT: Mechanical properties of rocks with marked weak planes such as foliation, schistosity or bedding, are not isotropic. The deformability of these rocks is transversely anisotropic (TI), and, therefore, different axial strains are observed according to the load direction, being equal...

... ABSTRACT: The standard method for determining the set of five independent elastic constants of transversely isotropic rocks relies on the conduction of at least three UCS tests with directional radial strain measurements on samples with varying isotropy plane orientation. However, in many...

... instability, alterations in excavation geometry, sliding of rock slopes and increased rock mass permeability (Wang 1981; Larson & Wade 2001; Glamheden & Hökmark 2010) The deformation of rock masses is strongly influenced by the presence of discontinuities, including bedding planes, faults, and joints...

... behaviour due to the bedding planes and laminations (Jia et al. 2017). Anisotropy in tensile strength is vital for fracture pressure of drilling or breakdown pressure of hydraulic fracturing (Ma et al. 2017). Usually, the Brazilian test is broadly applied to obtain tensile strength because of its simple...