Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Stress-Dependent Permeability of the Fractured Rock Masses: Numerical Simulation Based on the Embedded Fracture Continuum Approach
In this work, the Embedded Fracture Continuum (EFC) approach will be used to model the stress-dependent permeability of the fractured rock masses. This novel approach allows incorporating explicitly the fracture networks in the porous rock mass by using the fracture cell concept which represents the grid mesh intersected by at least one fracture. More precisely, in the EFC approach, each fracture cell represents an equivalent porous medium that the concept of continuum model can be straightforwardly applied. The numerical simulations will take into account the closure/opening effect due to the non-linear behavior of fractures with respect to normal stress as well as the shear-dilation effect. A damage law of the intact rock that undergoes yield tensile strength is also considered to model the new flow connections between fractures. Through some numerical applications, we highlighted the influence of different parameters on the effective permeability of fractured rock masses.
Stress-Dependent Permeability of the Fractured Rock Masses: Numerical Simulation Based on the Embedded Fracture Continuum Approach
In this work, the Embedded Fracture Continuum (EFC) approach will be used to model the stress-dependent permeability of the fractured rock masses. This novel approach allows incorporating explicitly the fracture networks in the porous rock mass by using the fracture cell concept which represents the grid mesh intersected by at least one fracture. More precisely, in the EFC approach, each fracture cell represents an equivalent porous medium that the concept of continuum model can be straightforwardly applied. The numerical simulations will take into account the closure/opening effect due to the non-linear behavior of fractures with respect to normal stress as well as the shear-dilation effect. A damage law of the intact rock that undergoes yield tensile strength is also considered to model the new flow connections between fractures. Through some numerical applications, we highlighted the influence of different parameters on the effective permeability of fractured rock masses.
Stress-Dependent Permeability of the Fractured Rock Masses: Numerical Simulation Based on the Embedded Fracture Continuum Approach
Lecture Notes in Civil Engineering
Ha-Minh, Cuong (Herausgeber:in) / Dao, Dong Van (Herausgeber:in) / Benboudjema, Farid (Herausgeber:in) / Derrible, Sybil (Herausgeber:in) / Huynh, Dat Vu Khoa (Herausgeber:in) / Tang, Anh Minh (Herausgeber:in) / Dang, Hong-Lam (Autor:in) / Do, Duc-Phi (Autor:in) / Hoxha, Dashnor (Autor:in)
11.10.2019
6 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
stress-dependent permeability , fractured rock , EFC approach , non-linear behavior , fracture propagation , Coulomb failure criterion Engineering , Geoengineering, Foundations, Hydraulics , Sustainable Development , Landscape/Regional and Urban Planning , Structural Materials , Building Construction and Design , Transportation Technology and Traffic Engineering
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