... also shows the alluvial and colluvial soils to be of lower shear strength than the substance strength of the residual clays through which failure planes are occurring. Direct shear testing on residual clays indicated a peak substance strength of c =13kPa, 20o, which compares well to the c =11kPa, 26o...

... of the slope, detailed geological investigations were carried out on this area. geological investigation shale investigation landslide iwaidani side plane kyusyu electric power company weathered shale river Reservoir Characterization borehole ooseuchidani river talus deposit upper reservoir...

..., and they should not be required to study huge user-manuals, to be able to walk through the virtual tunnel The tunnel can be displayed with photorealistic textures. photorealistic texture information plane Upstream Oil & Gas calculation numerical simulation human computer interaction geomechanics...

... practical problem prism slope stability analysis method column series plane failure plane fredlund neutral plane slope stability analysis velocity field column-to-column interface safety A NUMERICAL METHOD FOR THREE DIMENSIONAL SLOPE STABILITY ANALYSIS Zuyu Chen1, Yujie Wang2 and C...

..., plasticity, shear hardening, strength deterioration and high potential of sliding as shear band etc. However, to determine the stress conditions govern fracture of intact materials, a general three dimensional failure criterion is required. In this paper, an integrated planes elastic-plastic model capable...

... SUMMARY: Generalized form of multi-plane integration framework employed to sum up the non-symmetric plastic compliance matrices of integrated planes to build up the main compliance matrix. A normal rule of yield boundary presenting suction effects is specified upon the plastic shear strain...

... ABSTRACT: This paper describes a new technique for computing lower bound limit loads in anisotropic media under conditions of plane strain. Although limit analysis has been applied extensively to homogenous and isotropic soils, as well as soils with a variation of cohesion with direction...

... caused by an earthquake. In this study, an integrated planes elastic-plastic model for predicting the behavior of liquefiable sand under cyclic loading on the basis of sliding mechanisms and elastic behavior of particles has been presented. This model is implemented in a finite element program to solve...

... of the Fourier transform analysis of the topography of the two halves of the sample defined by a plane intersecting its mass center. Three-dimensional spectra are obtained as a function of two frequencies along the co-ordinate axes. The cross-sections of the spectrum are then investigated and the pattern...

... both short and long-term deformation of the clay around the grout and to investigate the fundamental behaviour of the compensation grouting process, which includes hydraulic fracture and cavity expansion mechanisms. The experimental results indicate the growth of a fracture plane in soil in a very fast...

... ABSTRACT: Post-mortem analyses of seven slope failures in rock slope are reported. The analysis is based on simple force equilibrium of a block of rock surrounded with several planes of discontinuity and separated from the neighbouring rock mass in a rock slope. Driven by the own weight...

... and explosive behaviour. From the view point of lithology it is a rock type of rhyolite with secondary feldspar. The rhyolite was the subject to extensive denudation in the Pannonian period. orientation disintegration stability ground transportation stability analysis plane fussgänger estimation...

... must be obtained first. They found that estimating the geometrical features seem to play the essential part for calculating the contact closure. Reservoir Characterization joint surface contact theory closure circular body elastic closure plane irregular joint profile circular summit...

... hydraulic fracturing Reservoir Characterization reservoir geomechanics orientation plane drilling operation sr instrument Upstream Oil & Gas relaxation Directional Drilling fracture direction strain relaxation instrument principal stress procedure stress field hydrostatic...

... by mining. They can be eonsidcred as shear-slip events, since none of the evaluated 31 events can be attributed to an implosional mechanism. One of the two planes of a first-motion solution almost always coincides with the feature under consider- ation. Most of these events (M > 3) on the CLR originate...

... fracture toughness Upstream Oil & Gas stimulation plane oil sand Symposium Fall Meeting Denver hydraulic fracture Settari toughness injection hydraulic fracturing variation geometry fracture propagation low permeability gas reservoir propagation reservoir fracture Rock...

... of wellbore Pont d'As 5 drilled at 4500 m depth below Pau. The re-pressurisation of a fault triggered small shear movements, thus weakening the casing so that it could not withstand a decrease of internal pressure. Joints or planes of weakness with about ten centimetres spacing can also lead to instabilities...

... of a triangular cross-section, 300 m high, located on a multi-layer rock foundation, the layers dipping at the angle of 45° to the horizontal plane. STATEMENT OF THE PROBLEM The earlier papers of the Authors (Sinitsyn et al. 1987; Sinitsyn et al 1985) published in the Proceedings of the 5th and the 6th...

... are related to the stress state and structure behavior of rock mass very much. If the intersective angle between shearing direction and joint plane is greater than some 67.5 degrees, the failure should take place through rock blocks. In this case, the failure strength can be described power plant...

... the internal water pressure by studying the cross sections of the tunnels. But few researchers studied logitudinal section along the tunnel as the Norwegian did in FEM charts, surly that they did not take into account the case with high pressure water filling in joints and stratification plane. CALCULATION...