.... By introducing disorder in the model, mesh dependency in modelling fracture growth is minimized. Fluid flow is simplified as flow in pipe network and the permeability of pipe is related to fracture aperture by cubic flow law. Therefore, fracture flow and rock deformation are fully coupled. In this paper, four...

... Abstract Fractures are the key channels for fluid flow and mass transport in fractured rocks of low/negligible matrix permeability. In single rock fractures, surface roughness causes fluid flow in tortuous paths, and reduces the overall fracture conductance. A number of empirical models have...

... was statistically characterized based on the measured data of rock surface topography by laser scanning. A Finite Volume Method (FVM) code was developed to solve the Navier-Stokes (NS) equations and transport equation for numerical modelling the process of fluid flow and solute transport in the rock fracture model...

... of Shirahama sandstone specimen were analyzed. Geometrical information on the number of connecting path shows reasonable correlation between permeability anisotropy and mutually perpendicular directions normal and parallel to bedding planes. In addition, we introduced numerical simulation of fluid flow...

... disposal, geothermal energy, LNG underground storage etc. The thermal-mechanical coupling in FRACOD was developed using an indirect method based on fictitious heat sources and a time-marching scheme. The hydro-mechanical coupling in FRACOD was focused on fluid flow in explicit rock fractures using...

... ABSTRACT This paper presents an analytical solution of two-dimensional poroelasticity in the case of constant point sink and closed boundaries. The studied problem is coupled pore fluid flow and solid deformation due to a point sink within a twodimensional finite rectangular domain...

...-surface conditions, including hard desert sediments and bare rock. Inverse semianalytical strain analysis as well as coupled fluid flow and geomechanical numerical modeling are being employed to interpret observed ground-surface deformations in terms of underground fluid movements and structures...

... ABSTRACT The fluid flow and tracer transport in rock fractures during shear processes has been an important issue in rock mechanics and is investigated in this paper using Finite Element Method (FEM) for fluid flow and particle tracking simulations, considering evolutions of aperture...

... fluid flow stiffness failure index abutment failure stability rock mass interaction jointed rock abutment initial aperture increase initial aperture 11th Congress of the International Society for Rock Mechanics Ribeiro e Sousa, Olalla & Grossmann (eds) © 2007 Taylor & Francis Group, London...

... INTRODUCTION A comprehensive study on fluid flow and mass transport properties of fractured granite was conducted at the underground test site at Kamaishi Mine in Japan. The test consists of the three major stages: geometrical and geological fracture system characterization. hydraulic characterization...

... ABSTRACT: The fluid-flow and geomechanical processes near excavations in rock are inherently coupled through alteration of the fluid-flow parameters of permeability and porosity due to mechanical damage induced by the excavation. In addition, the mechanical stresses which drive the rock damage...

... process was similar to interface separation. Reopening of fractures that had not closed completely, showed markedly different phenomena. Initiation and propagation pressures became lower. We found indirect experimental evidence for the occurrence of fluid flow into the fracture before fracture opening...

... the peak shear strength. Further, the joint was more and more constrained at increasing shear displacement, with increasing normal stress due to the stiffness. Of this reason, the dilation also decreased. Thus affected the void geometry and thereby the joint aperture and the fluid flow. RÉSUMÉ: Des...

... ABSTRACT: The aim of this work is to investigate the evolution of fluid flow in a rock fracture due to an increasing normal load. A numerical modelling is used to simulate the behaviour of a fracture with rough surfaces: a mechanical model based on the Boussinesq theory provides...

... is drilled and then a sealed-off segment of the borehole is pressurized with high pressure water until the fracture initiate and the flow is in a steady state. In this state the displacements around the fracture can be calculated from the stress state and fluid flow. The displacement is superposition of two...

... Druckverteilung ueber die Kluftlange. Die Druckverteilung ist nur dann linear, wenn die Kluftwande parallel sind. Bei sich andernder Kluftweite ergeben sich nichtlineare Druckverteilungen. ABSTRACT: The fluid flow of cohesive, highly viscous epoxy resin under high pressure (up to 15 MPa) in narrow joints (0.2...

... at the different stages. Fluid flow through the rock mass is basically determined both by the properties of the intact rock and of the discontinuities. In practice, the intact rock - with exceptions - has limited ability to transmit fluids, discontinuities are dominant and fluid flow occurs mainly through...

... assessment methodology in Japan (Kumada et al.(1986)). waste management modeling fracture plane hydraulic fracturing residence time complex reservoir transport analysis Upstream Oil & Gas particle seepage analysis transmissivity validation fluid flow three-dimensional discrete...

... permeability for the intact rock. An arbitrary number of joint sets with user-specified orientation can be treated. Each joint set is assumed to have linear elastic stiffnesses and isotropic in-plane permeability. A continuum theory is obtained by adding the compliances and fluid flows associated...

... geometry of the void spaces between the fracture surfaces and the areas of contact at different stresses. At effective stresses of less than 20 MPa fluid flow was proportional to the mean fracture aperture raised to a power greater than 3. As stress was increased, contact area was increased and void spaces...