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  DFN generation for Mechanical Stability Analysis of Underground Works

  A first step in the characterization of fractured rock materials and its anticipated mechanical response during an underground excavation is the static mapping and modelling of the subsurface fracture system. This task is rendered difficult by the lack of truly 3D data about the subsurface fracture geometry. Yet, it is critical to be able to establish a reliable, geologically and geomechanically sound characterization for a tunnelling project. The use of Discrete Fracture Networks (DFNs) is becoming increasingly more common in geomechanical practice; as such models can serve as useful tools for estimating the interconnectedness of the discontinuities.

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