... equilibrium geology reservoir characterization convergence theory radial displacement reservoir simulation geological subdiscipline environmental science 833 stiffness comparison lining tunnel rock engineering applicability limitation Mechanics and Rock Engineering, from Theory to Practice...

... axis of the probe does not always remain centered on the borehole. The displacement of this axis makes the radial displacement measures useless so only the diametric displacements can be used for deformation determinations. The most habitual elastic models in rock mechanics are the lineal isotropy...

... Reservoir Characterization fröschnitz 1 lining excavation displacement horizontal in-situ stress shaft rock mass schistosity construction geotechnical monitoring Fault Zone Upstream Oil & Gas radial displacement fröschnitz 2 system behavior tunnel Rock Mechanics and Rock Engineering...

... of solutions based on different failure criteria such as the Mohr-Coulomb failure criterion and Generalized Twin Shear Stress yield. Validation was carried out based on two case studies, which shows that if the radial displacements are not controlled, a loosening zone is produced above the tunnel. Moreover...

... the determination of two curves. One of them is the ground reaction curve (GRC), which represents the load or reaction exerted on the walls of the tunnel in order to detain its radial displacement. Many authors have developed expressions for the GRC under different rockmass behavior hypotheses. Among others, we can...

... is a graphic representation of the radial displacement of point in the periphery of the tunnel (or tunnel wall deformation) in regard to the distance between this point and the tunnel face. An accurate description of this LDP is needed to estimate the opti- mal distance to the face for installing the support...

... as a deformation-related parameter (Manouchehrian 2008). displacement boundary condition underground construction Upstream Oil & Gas radial displacement coefficient BEM Reservoir Characterization discretization horizontal stress boundary element method reservoir geomechanics displacement...

... behaviour of the tunnel cross section and the primary stress orientations are presented in this paper. displacement radial displacement cross section plane cross section Reservoir Characterization calculation reservoir geomechanics orientation panet failure zone vector stress situation...

... 5 case 6 case 1 case 2 case 3 case 4 case 5 case 6 Case Case (a) y displacement at crown (b) y displacement at invert Figure 4. Radial displacement after 2-D analysis Therefore, such plastic zone may bring about an increase in the support load to shotcrete. Figure 4 shows the radial displacement...

... as the influence of the techniques and phases of construction play in fact a very important role. Moreover it is difficult to assess the value of the convergence (Aa), that has already taken place in the section where the already placed lining part starts reacting. The relationship between the radial displacement...