Discrete Fracture Network (DFN)
With the DFN module, the fracture population embedded inside a rock mass is viewed as a set of discrete finite sized fractures. By default, the discrete fractures are {line segments in 2D; planar disks in 3D}.
- The DFN module provides an efficient tool to generate and manipulate fractures. The main features are:
- import/export of fractures from Itasca and Fracman files
- addition of deterministic fractures and generation of stochastic fractures
- intersections between fractures, intersections between fractures and outcrop/tunnel surfaces and borehole lines, scanline map calculation
- computation of clusters and connectivity properties
- fracture simplification methods
- definition of mechanical properties for fractures and assignment of these properties to model components
- visualization of fractures, outcrop/tunnel trace maps, stereonets
- FISH access providing the ability for custom creation, analyses and manipulations
- Based on these features, the following applications are possible:
- creation of site-descriptive sets of fractures
- calibration of fracture models based on 2D/1D data
- derivation of DFN statistical properties
- structural analysis of fractures in relation to the resulting mechanical properties
- easy creation of numerical models of fractured rocks for mechanical analyses
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