... conditions and rock Ledges are a natural product of rock excavations. The discontinuities in the Sydney region are described by bearing capacity of rock ledges are a particular case where Bertuzzi and Pells, 2002; Bertuzzi, 2014a; Bertuzzi, the confinement of the rock mass on one side is removed. 2014b...

... fracture zone network fluid modeling Upstream Oil & Gas hydraulic conductivity equation of state normani Fracture Zone discrete fracture zone network Sensitivity Case rock mass Groundwater Flow MoFrac Canada zone network freshwater head fracture zone network mean life expectancy 1...

... afflicted with uncertainty. These uncertainties are used to distinguish between natural variability and uncertainty using a ? 2 test of a contingency table of fracture poles. Two DFN models are developed, the rock mass fracture and the “measured” model, and the differences in connectivity between...

... ABSTRACT: The discrete fracture network (DFN) approach is used to develop a rock mass model filled with rock mass discontinuities, which is necessary to provide fundamental understanding of complicated rock masses and the ability to upscale analyses. DFN models have proven to be an efficient...

... of the fractured rock mass, a Discrete Fracture Network characterization is attained by means of the Baecher Disk Model. In order to ascertain the competence of the method, two case studies are presented based on published data of rock tunnels excavated in Washington, DC and New York City. The rock tunnels...

... homogeneous. Permeability reduction due to permafrost is applied to both rock mass and fracture zone elements. The sensitivity of freshwater heads to different conceptualizations of hydro-mechanical properties were investigated. fluid modeling hydraulic gradient equation of state Reservoir...

... ABSTRACT: A jointed rock mass is composed of intact rock matrix and joints. Joints play an important role in influencing the strength and deformation behaviors of jointed rock masses. Based on the concept of representative elementary volume (REV) and the synthetic rock mass (SRM) modeling...

.... In particular, for a rock mass in which fractures control the permeability, it is necessary to evaluate the groundwater behavior around the disposal pit in consideration of fractures in the surrounding rock mass. waste management Upstream Oil & Gas fluid modeling hydrogeological structure model...

... ABSTRACT: In open pit mines, repetitive blast-induced ground vibration can increase the risk of pit wall instability due to strain accumulation along discontinuities. Presence of discrete fractures or fracture networks in a rock mass can influence the propagation of blast-induced shock waves...

... of the fracture network, or whether the definition is given to also incorporate an analysis of failure mechanisms. The former is the focus of this paper. From a geometrical perspective, rock bridges could be defined as the shortest distance between two existing fractures; however, for a fractured rock mass even...

... ABSTRACT: Rock slopes can cause severe failures and they are crucial in characterizing rock masses realistically in order to overcome natural hazards. Mudurnu County, which is settled in a steep valley presents a case for regional rock instability problems. Instabilities of rock masses along...

... ABSTRACT: The stochastic nature of the DFN process is such that there is an infinite, but equally probable, number of possible realisations of the 2D fracture systems based on the specified input parameters. Ideally, synthetic rock mass modelling should include the numerical testing...

... ABSTRACT: This paper summarizes the simplification approaches applied to the Discrete Fracture Network (DFN) used in modeling of field scale EGS and other unconventional reservoirs. The main objective of the DFN simplification processes is to preserve the properties of the rock mass, i.e...

... ABSTRACT: Assessment of flow through fractured porous rock masses is a common problem in many engineering applications including hydrogeology, in-situ mineral recovery, hydro-geothermal resources, mining and oil and gas extraction. In all these applications, flow through the fracture network...

... ABSTRACT: 3D photogrammetric models and discrete fracture network models were created for four different sites located near Butte, Montana. The rock masses at the sites represent different types of geology and different degrees of geotechnical characterization. The 3D models were built using...

... ABSTRACT: In this study, the stability assessment and the analysis of the structurally controlled rock failures in the Geçilmez tunnel, which was constructed in Giresun, along the Black Sea coastal highway was performed. The rock mass classification of the tunnel grounds was completed...

... ABSTRACT: The finite element method (FEM), has been applied to a variety of slope stability problems, including jointed rock masses. Traditionally, discontinuities (e.g., joints, faults) in a rock mass are explicitly modeled using interface elements to capture their behavior. While...

... ABSTRACT: The mechanical behaviors of intact and jointed Blanco Mera granite are studied using the lattice-spring-based synthetic rock mass (LS-SRM) modeling approach. Both intact and jointed granite specimens are characterized for peak compressive strengths and elastic moduli under...

... ABSTRACT: Characterisation and communication of spatial variability in rock mass defects as well as rock matrix properties is important for many mining and civil engineering analyses. Slope stability analysis and drill and blast design are two such analyses that require accurate 3-dimensional...

... ABSTRACT: One of the important applications of DFN models is the quantification of rock mass quality through rock mass classification systems such as Geological Strength Index (GSI, Hoek et al., 1995). For instance, Cai et al. (2004) presented a quantitative method to assist in the use...