Stress-dependent permeability of fractured rock masses: a numerical study
نویسندگان
چکیده
منابع مشابه
Upscaling of Permeability Field of Fractured Rock System: Numerical Examples
When the permeability field of a given porous medium domain is heterogeneous by the existence of randomly distributed fractures such that numerical investigation becomes cumbersome, another level of upscaling may be required. That is such complex permeability field could be relaxed i.e., smoothed by constructing an effective permeability field. The effective permeability field is an approximati...
متن کاملNumerical probabilistic analysis for slope stability in fractured rock masses using DFN-DEM approach
Due to existence of uncertainties in input geometrical properties of fractures, there is not any unique solution for assessing the stability of slopes in jointed rock masses. Therefore, the necessity of applying probabilistic analysis in these cases is inevitable. In this study a probabilistic analysis procedure together with relevant algorithms are developed using Discrete Fracture Network-Dis...
متن کاملNumerical modeling of stress-dependent permeability
In this paper, conceptual models are presented to identify the effects of solid deformation on the changes in rock permeabilities for (a) fractured media, (b) intact media, and (c) fractured porous media subjected to external loads, all in steady state conditions. Finite element schemes are then developed with embedded correlations between induced strain and modified permeability to simulate th...
متن کاملNumerical Homogenization of Elastic Behavior of Fractured Rock Masses and Micro-cracked Materials by FEM
A review of recent works on numerical homogenisation of fractured rock masses gives witness of difficulties in defining rigorously and determining numerically the macroscopic strain and stress that are to be used in upscaling relations. Moreover, for finite-size domains, relations between macroscopic strain and stress are dependant on boundary conditions and this constitutes an additional diffi...
متن کاملPermeability Estimation from Velocity Anisotropy in Fractured Rock
Cracks in a rock mass subjected to a uniaxial stress will be preferentially closed depending on the angle between the fracture normal and the direction of the applied stress. If the prestress fracture distribution is isotropic, the effective elastic properties of such a material are then transversely isotropic due to the preferred alignment of the cracks. Velocity measurements in multiple direc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Rock Mechanics and Mining Sciences
سال: 2004
ISSN: 1365-1609
DOI: 10.1016/j.ijrmms.2004.05.005