Simulation Case Studies

 
Video demo of Irazu to simulate hydraulic fracturing
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Irazu is an advanced general-purpose rock deformation and fracturing simulation software. In this video, an application of Irazu to simulate fluid injection into a permeable, fractured rock mass is presented (i.e., hydraulic fracturing). The software is capable of capturing: fluid-driven fracturing of intact rock; energy dissipation due to fluid viscosity and fracture toughness; fluid leak-off Read More >>>



 
Simulation of thermally-induced fracturing
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Understanding and predicting the the rock mass mechanical response to temperature variations is relevant for a number of geo-engineering applications, including: underground disposal of nuclear waste, geothermal energy extraction, underground LNG storage, geological sequestration of CO2, and coal bed gas extraction. We are pleased to announce that we have been working on the introduction of Read More >>>



 
A new FEMDEM modelling capability: rock reinforcement
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We are excited to announce that we have implemented a mechanically-based model of the rock-reinforcement interaction process. The methodology represents an adaptation of the reinforcement elements first developed for FEMDEM analysis of reinforced concrete (Zivaljic et al. 2013) and modified to make them suitable for modelling rock masses. From a numerical viewpoint, the reinforcement model Read More >>>



 
3D Tunnel Simulations
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Following up from our previous blog post on 3D FEMDEM Simulations, 3D simulations of a tunnel excavated in a weak rock (resembling properties of a clay shale) are presented here (E=3.8 GPa, ν=0.25, σt=0.41 MPa, c=5 MPa). In this simplified case study, the entire length of the tunnel was excavated at once at the beginning Read More >>>



 
3D FEMDEM Simulations
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We have been working on a prototype of three-dimensional FEMDEM. We’ve implemented most of the critical features into the code, including a quasi-static friction law, Mohr-Coulomb failure criterion, and transversely isotropic elastic constitutive law. We’re excited to showcase some of the simulations results here. The figure below shows the simulation of a uniaxial compression test Read More >>>



 
Modelling approaches for layered rocks
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Mechanical anisotropy: sources and implications The mechanical behaviour of several rocks, such as schists, sandstones, shales and basalts, is characterized by strong stiffness and strength anisotropy . This anisotropy may arise at different spatial scales within the rock: mineral scale: laminated material micro-structure; centimetre scale: schistosity, foliation, and bedding planes; rock mass scale: presence of Read More >>>