..., for example, planar or wedge sliding (Hungr et al. 2014). However, during a rock fall process, the deformation mechanism may change. Thus, it is also essential to distinguish between the initial failure mechanism on the one hand and possible running-out mechanisms on the other (Poisel & Preh 2004...

... subdiscipline kaz mineral upstream oil & gas wedge deposit mineral risk management metals & mining hazard figure 1 journal right investigation 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG Rock slope design and residual risk management...

... for the rest of the geotechnical properties. This paper describes how to use the EC7 methodology to obtain representative values for the geometrical properties of discontinuities. Moreover, an example is included to compare the safety factor of a wedge using this EC7 methodology and the derived from normal...

... mine are collected through face mapping and laboratory tests are done to obtain the intact rock and joint properties. The kinematic analysis of the initial slope design showed wedges forming in the benches. As a remedial measure, the wedge failure analysis is done for the bench scale and the most...

... a failure indicator function I . For large enough values of m , the failure frequency provides an estimate of the probability of failure. geology portugal government mechanism rio nacional europe government stability wedge stability existence probability wedge orientation application...

... reservoir characterization simulation small-scale underground mining reservoir geomechanics displacement method laboratory crown pillar wedge classification tunnel layout stability metals & mining intersection reaction curve pillar engineering rock mechanic Abstract...

..., with a clearly identifiable failure mechanism and few blocks, they may advantageously replace limit equilibrium analyses, while in complex blocky systems the use of discrete element models is difficult to avoid. This paper presents a model with a wedge block on a rock slope. It was used to evaluate...

... wedge serra intersection projection application planar concentration literature stereographic projection orientation foliation reservoir characterization software geological discontinuity stereographic projection software probability massif plane discontinuity foliation plane...

... photogrammetry and laser scanning. Comparing DSMs of the cliff and the tunnel from two time stages, morphological variation of cliff and tunnel, lining crack evolution and information about a fallen rock wedge on tunnel roof was acquired. Digital Surface Models of the cliff and the tunnel were combined...

... of the bearing capacity in intact and heavily jointed rocks based on the failure mechanism presented in Fig- ure 2 can be carried out in a similar way as for soil formations. Figure 2. Failure mode of a homogeneous rock due to the loading of a spread footing. Figure 3. Scheme of the failure wedges in rock...

... in boreholes drilled in the rock mass, The strand is usually coupled with cement grout to the rock. A barrel and wedge anchor is used at the collar of the borehole to restrain a plate and other surface hardware such as steel wire mesh or shotcrete. Theoretical investigations by the writer (Thompson, 1992...

.... It was seen that it has a parabolic effect on the maximum possible wedge that can fail into a circular pit, where the tighter the concave curvature the smaller the wedge. The plan curvature also affects the volume of a particular wedge, where concave slopes result in an exponential decrease in the volumes...

... tOUghness). In order to apply dynamic loading to an SR s~ecimen, the ,specimFn'was altered (Zhang et all 1,992), see Fig", 1b. A speclalIoadlng wedge was designed to load the sPectmen so that it could be used in both static and dynamic fracture tests. Two semi-circle steel slices were firmly bonded...

... the development of fissures (cracks) observed in the upstream wall as benching progressed downward The fissures were shown to result from a wedge formed by three shear zones. Further analysis was performed to assess the stability of the wedge both at the completion of excavation and after dam construction...

... Reservoir Characterization orientation wedge excavation Wellbore Design displacement failure surface shear strength cable reservoir geomechanics strength acceptability criteria rock mass probability deformation structural feature foundation safety Upstream Oil & Gas cavern...

... of internal anchors (Fig. 1) have been used at various mine sites. Tests by O'Bryan (1982) with both the barrel and wedge and swaged steel anchors showed in hard rock, with percussion drilled holes, approximately 250 mm of embedment length was sufficient to transfer the dasign load of the cables (25 tonne...

... structural geology Itaparica Dam instrument Reservoir Characterization sao francisco river plane rock mass wedge sandstone execution Stability Study excavation surface rock wedge potential wedge consolidation borehole excavation fracture foundation unstable wedge...

... tension crack cohesion slope failure metals & mining wedge discontinuity south slope strength plane southern slope inclination volue saturation friction angle supposition slope stability Upstream Oil & Gas smreka stability instability elevation exploitation SLOPE...

... Characterization Piezometer wedge plane procedure Upstream Oil & Gas displacement programme objective monitoring extensometer time effect borehole instrument strength deformation excavation accuracy Engineer water pressure interpretation tunnel MONITORING OF DEFORMATIONS ASSOCIATED...

... Elastizitätskonstanten zu erzielen, sollen beide Methoden, sowohl die schalltechnische, als auch die schlagtechnische Methode, zur Anwendung gelangen. reservoir characterization travel time poisson axis specimen transverse wave indication wedge frequency vibration physical property cross section...