Modelling Rock Fracturing Processes
A Fracture Mechanics Approach Using FRACOD
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Bao** Shen
Geotechnical Engineering & Applied Earth Sciences
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Article
Nanoparticles Study on the Indosinian **aomei Shear Zone in the Hainan Island, China: Implication to Developmental Stage and Formation Mechanism of Nanoparticles in a Fault Zone
Nanoparticles are widely observed in the natural shear zone and experimental slip faults, which can lubricate the fault and significantly reduce the friction coefficient during seismic slip. But it is still no...
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Chapter
Introduction
Rock mass is increasingly employed as the host medium for a vast array of human activities. Facilities like storage areas, wells, tunnels, underground power stations are located in a variety of rock types and ...
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Chapter
Laboratory Studies of 2D and 3D Rock Fracture Propagation
To study mechanisms of crack propagation and coalescence in rock like-materials, several experimental studies were performed using gypsum specimens with pre-existing 2D and 3D cracks under uniaxial and true tr...
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Chapter
Modelling Tunnel Failure and Fault Re-activation in CO2 Geo-sequestration
Failure of brittle rock is often associated with explicit fracturing events. Understanding fracturing behavior of rock masses has become a critical endeavour for not only civil engineering but also geological ...
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Chapter
Applications for Deep Geothermal Engineering
There is mounting interest in develo** deep geothermal energy because of its abundant potential as the base-load renewable energy source. Numerical modelling has been widely used to advance the fundamentals ...
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Chapter
FRACOD3D: A Three-Dimensional Crack Growth Simulator Code
This chapter first outlines the theory and an implementation of a well-established three-dimensional boundary element method, displacement discontinuity method (DDM), for a three-dimensional crack growth simul...
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Chapter
Mine Stability and Water Inrush in Coal Mine
This chapter describes three major parts associated with mining stability and mine water inrush: The first part discusses the stability issues related to rock burst in deep underground coal mines, the second p...
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Chapter
Introduction to the Theories of Rock Fracturing
This chapter provides the basic theories and principles behind rock fracturing and rock fracture mechanics. It starts with introducing the Griffith flaws and energy balance theory, which is the foundation of t...
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Application to Underground LNG Storage
This chapter introduces the underground LNG storage technology which is superior in safety, economic and environmental aspects to a conventional aboveground and inground storage type and shows various results ...
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Modelling Rock Fracturing Processes with FRACOD
Rock failure is often controlled by fracture initiation, propagation and coalescence, especially in hard rocks where explicit fracturing rather than plasticity is the dominant mechanism of failure. Prediction ...
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Book
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Chapter
Hydro-Mechanical Coupling
This chapter provide the theoretical formulations and numerical procedures involved in hydro-mechanical coupling function in FRACOD.
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Chapter
Iteration Process in FRACOD
This chapter describe the iteration process used in FRACOD. Boundary element methods (including DDM) are implicit numerical methods. This means that the numerical calculation will only provide a final solution...
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Chapter
Simulation of Multiple Region System
Rock mass may have different properties in different regions of its structure. An example is a shaft where three different regions (concrete lining, Excavation Disturbed Zone (EDZ), and in situ rock mass) must...
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Sequential Excavation Function
FRACOD as a boundary element code works best for problems with predefined boundaries. If the model boundary is not completely fixed at the beginning, this creates difficulties for boundary element modelling. A...
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Chapter
Introduction
Understanding the long-term behaviour of a rock mass and the coupled hydro-thermal-mechanical processes is crucial for geological radioactive waste disposal, geothermal, mining, LNG underground storage, and CO2 g...
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Chapter
Anisotropic Rock Strength Function
In rock engineering, anisotropic rock masses are often encountered and cannot be simplified as an isotropic problem in numerical models. Hence an anisotropic function in the numerical model is required.
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Chapter
Modelling Time Dependency
This chapter describes the theories of sub-critical crack growth and numerical procedures implemented in FRACOD. Classical fracture mechanics postulates that a fracture tip with a stress intensity equal to the...
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Chapter
Solving Gravitational Problems
Many practical rock-engineering problems involve gravitational stresses. Rock slope stability and shallow tunnel stability are two examples where the gravity stresses cannot simply be ignored or simplified as ...
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Chapter
Introduction to Rock Fracture Mechanics
This chapter provides the basic theories and principles behind rock fracture mechanics. It starts with introducing the Griffith flaws and energy balance theory, which is the foundation of the modern fracture m...
