... these issues, ground control, geomechanics, and geology teams have been collaborating to investigate the problems, develop mitigation strategies, and implement safer and more efficient mining practices. mineral geologist rock type structural geology reservoir characterization seismicity wedge...

... the fault as a pre-existing contact surface with a varying frictional strength that is lower than the intact sediment. The weaker fault results in a decrease in sediment differential stress near and especially seaward of the fault. A significant section of the wedge is affected by this stress variation...

... ABSTRACT Geological discontinuities have a large impact on the rock mass behavior in underground excavations. Under low stress conditions, structurally controlled wedge failure is one of the most critical types of rock instability. The stability analysis, in this case, is essential to consider...

... instability excavation wedge support pressure golder associate fracman rock mass rock mass condition ARMA 21 1180 Discrete Fracture Network Approach in Ground Support Design Optimisation for Large Span Cavern in Jointed Rock Mass Haryono, I. S. Golder Associates (Hong Kong), Hong Kong, People s...

.... The approach is built on the use of a fully three-dimensional discrete fracture network (DFN) model to identify potential rock wedges, and hybrid discrete/continuum approach to assess the shear and normal effective stresses on the natural and (potentially) induced fractures that define those wedges...

... the intersection supports a wedge wave and that these wedge waves are coupled through the points of contact along an intersection. In this paper, we demonstrate the use of group theory to predict the number of vibrational modes supported by a fracture intersection. Five predicted vibrational modes are supported...

...-dimensional (3D) analysis of the approach channel sidewalls, taking into account both existing and planned excavation geometry, existing and planned rock slope reinforcement, and the planned reinforced concrete approach walls, was also performed. Reservoir Characterization orientation wedge geometry...

... analysis, the probabilistic simulation approach shows possibilities of multiple rock block failure modes due to scatter of rock joint orientation with the respective probability of occurrence for each mode of block failure. drilling operation management wedge intersection Modeling & Simulation...

... of damage within the model. The numerical simulation results highlight the close connection between kinematics and damage in high rock slopes. metals & mining relation ellipsoid reservoir simulation wedge Modeling & Simulation displacement rock slope Reservoir Characterization...

... failure mode plane physical model testing rotational mode tilt table block assembly Plaster stereographic projection wedge failure mode rock block Upstream Oil & Gas stability analysis physical model Block Theory friction angle ARMA 14-7307 Physical Model Study of Rotational Failure...

... such as orientation and dips were conducted to analyze the likelihood for plane shear and wedge type failures to occur for given bench face configurations and orientations. For this purpose, Monte-Carlo generated joints analyses using Rocscience SWEDGE computer program was conducted along with stereographic analysis...

... of the impact of rock bridges and brittle fracture processes. In the first part of this study, the 3D lattice spring code Slope Model allows evaluation of the effect of rock bridges on the stability of a pentahedral or “non-daylighting” wedge. The geometry adopted simulates a 3D equivalent of a conventional 2D...

... rock bolts and hard rock masses subjected to changes in stresses induced by mining. During the test a large rock wedge was observed in the footwall side of the drift. Borehole extensometers, distometers, telescopic tube extensometers and rockbolts with strain gauges recorded the movement of the rock...

... interaction and assess the potential for planar, wedge, and toppling failures. The excavation work illustrates the real-world and practical aspects of implementing temporary rock support measures at the foundation of a prominent structure. This paper emphasizes the engineering issues from the contractor’s...

... conclusions. Likewise, code specification of a minimum factor of safety may lead to very different design decision. In this paper, stability of a 2D symmetric wedge in the roof of a circular tunnel is considered. It is shown that the best definition for the factor of safety is the ratio of passive to active...

... on major structures and phenomena affecting the rock mass quality. metals & mining sarcheshmeh west wall wedge west wall reservoir geomechanics stability analysis History geometry strength displacement component slope stability analysis toe region Reservoir Characterization toe...

... Reservoir Characterization modeling overburden in-situ stress modeling wedge evolution salt-based gravity deformation numerical modeling Upstream Oil & Gas viscous substrate gravity salt pinch-out structural geology fold-and-thrust belt physical model passive margin 1...

... values of the input parameters involved and thereby ignores the inherent variabilities of the parameters. In this study, the Monte Carlo simulation method is used to account for the frictional properties, described by the friction angle and cohesion of the joint planes defining a wedge in a slope...

... Reservoir Characterization complex reservoir hydraulic fracturing Upstream Oil & Gas fracture length fracture network excavation fracture DFN model trace map conventional wedge analysis wedge analysis fracture geometry orientation stability analysis geometry rock mass safety...

... ABSTRACT: This paper addresses issues associated with the analysis of rock slopes susceptible to wedge failure. It relies on two case studies to review the state-of- the-art in the use of kinematic, deterministic and probabilistic limit equilibrium methods. Furthermore, it presents a more...