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Keywords: boundary
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Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-327
... grout, soil type, stress history of the soil, stress state, boundary conditions and rate of injection. Because of the complex behaviour of grouting in soils, a conceptual modelling of compensation grouting in clayey soils is necessary. Upstream Oil & Gas specimen grout viscosity grout...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-515
... package. Not only the outflow was permitted through the left-hand side boundary, but also the inflow was permitted across the right-hand side boundary. Both were specified as constant head boundaries. The surface boundary condition was one of constant flux specified so as to represent infiltration or...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-410
... film time-dependent change liquefaction boundary coarse sand deposit Figure 1. Slope in dewatered trench excavated for soil investigation WATER FILM MECHANISM IN SEISMICALLY INDUCED LAND AND SUBMARINE SLIDE Takeji Kokusho1 and Tetsuro Kojima2 ABSTRACT Site investigation in sandy soil sites...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-050
... better with the test result than the prediction result. Upstream Oil & Gas explosion test preexisted stress fluid modeling Engineering computational model test result Reservoir Characterization field explosion test charge chamber boundary equation of state formula jointed rock...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-241
... soils due to lateral spreading. strength clean sand boundary flow potential residual strength void ratio range sandy soil deposit Ishihara relative density SPT blow count steady state line deformation fine content no-flow condition flow deformation FLOW POTENTIAL OF SANDY SOILS...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-254
... spectral characteristics of microtremor and earthquake ground motion were examined, comparing with theoretical characteristics of Rayleigh wave and S wave. Fig.2 shows a test site ground condition. At this site, soft surface soil layers are exists until upper boundary of engineering bedrock appears at the...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-037
... Reservoir Characterization reservoir simulation boundary element model metals & mining Upstream Oil & Gas fundamental solution boundary condition boundary displacement reservoir geomechanics element method time step Artificial Intelligence displacement excavation equation...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-158
... not frequently analysed, that one part of the rock decay, the rock dis- integration is proceeded through the gra- dual decrease of cohesive energy on the grain boundaries until the complete dis- integration. The bonding properties of the solid rocks are representing a very narrow layer of the size of...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-167
...) au external or overburden stress Ri Initial radius (excavated tunnel) Rc Radius of tunnel after convergence Rb Boundary between intact and broken coal ub Displacement of this boundary ab Radial stress on this boundary Rr, Rrr Dimensions of injected area. ar, arr Radial stress on Rr and Rrr· 3. The...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-108
... occurred, the pore pressure is nearly constant due to the higher diffusivity. At the boundary of the failed or disturbed zone, pressure causes flow of condensed water into the virgin reservoir. The magnitude and timing of the pressure responses at observation wells can be used to estimate the size of the...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-057
... Mech stiffness aperture experiment boundary Witherspoon permeability tensor Rock at Great Depth, Maury & Fourmaintraux (eds), © 1989 Balkema, Rotterdam. ISBN 90 61919754 Permeability of rock masses at great depth Permeabilite des massifs rocheux a grande profondeur Durchlassigkeit des Gebirges...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-073
... boundary dyke equation of state calculation coefficient nonreversible shear strain gradual shear failure reservoir geomechanics displacement great depth korotkov gradual failure Reservoir Characterization explosion porosity application tensile stress brittle parameter Rock at GreatDeplh...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-070
... region equation boundary Strength Criterion tunnel Rock at Greatoepth, Maury & Fourmaintraux (eds), © 1989 Balkema, Rotterdam. ISBN 90 61919754 Effects of non-linearity and strength reduction of rocks on tunnel movements Effets de la non-linearite et de la perte de resistance des roches sur les...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-072
... Upstream Oil & Gas Griffith criterion initiation structural geology microcrack failure zone Computation boundary rock specimen propagation fracture surface tunnel Reservoir Characterization strength mechanism stress state rock mass fracture brittle fracture rockburst Rock at Great...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 12–16, 1988
Paper Number: ISRM-IS-1988-008
... method is suggested for estimating the stress-strain state of rock foundations weakened by periodic systems of parallel oblique joints. The method is bas ed on the analytical solution of the relevant boundary problem of the elasticity theory. Different types of rock foundation models are considered. A...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 12–16, 1988
Paper Number: ISRM-IS-1988-066
... Region. The problem is thus much more simple in the transformed field, since the boundaryes there are all rectangular, and the computation in the transformed field thus is 536 regardless physical ofon a square grid the shape of the boundaries. Several transformed region configurationsmay be obtained rut...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 12–16, 1988
Paper Number: ISRM-IS-1988-042
... of several to a dozen meters. When the tunnel is full of water, the high pressure water unavoidably fill in these open fissures. As a new kind of load they act on the boundary of such fissures which may cause further stretching and so called hydro-splitting may happen. 2.1 The modelling of the...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 31–September 3, 1986
Paper Number: ISRM-IS-1986-053
..., intragranular cracks and cracks along grain boundaries. Rock have been subjected to a series of complex processes as rock-genesis, metamorphosis, tectonics, sedimentation and erosion. The process of rock genesis was accomplished under various complex diffusional and shear transformations with changes of volume...
Proceedings Papers

Paper presented at the ISRM International Symposium, May 26–28, 1982
Paper Number: ISRM-IS-1982-059
... strength calculation boundary plastic zone Upstream Oil & Gas criterion lining excavation reservoir geomechanics volumetric strain water pressure shaft Rock Mech Reservoir Characterization displacement rock mass tunnel Ladanyi circumferential determination pressure shaft...
Proceedings Papers

Paper presented at the ISRM International Symposium, May 26–28, 1982
Paper Number: ISRM-IS-1982-134
... tunnel or a compressed air surge chamber among others. The idealized geometry of the cavern and the distance to a boundary equipotential, which may be the groundwater table, determines the value of a geometry factor appearing in the flow rate formulas. One formula applies to water flow in completely...

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