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Technical Specifications

Data Interpretation

  • View stress, displacement, strength factor contours
  • Effective stress, pore pressure contours
  • Contour user-defined data
  • Stress/Failure trajectories, deformation vectors
  • Display deformations to user-defined scale
  • Query and graph material, support, joint data
  • Export to Excel
  • Show values directly on model
  • Highlight yielded material, support, joint elements
  • Add iso-contours

Elements & Meshing

  • Triangular or quadrilateral finite elements
  • 3 or 6–noded triangles
  • 4 or 8–noded quadrilaterals
  • One-click mesh generation
  • Graded, uniform or radial meshing
  • Mapped meshing
  • Custom meshing
  • Check/Define mesh quality
  • Easily apply boundary conditions

Far-Field Stress

  • Constant stress field
  • Gravity stress field
  • Multiple stress fields (customize per material)

Finite Element Slope Stability

  • Automated FE slope stability using shear strength reduction (SSR) method
  • Define SSR include/exclude area
  • Import/Export Slide2 models
  • Accelerated SSR


  • Finite element steady state or transient seepage analysis
  • Staged groundwater
  • Material permeability functions
  • Discharge sections
  • Piezometric lines
  • Pore pressure grids
  • Fully coupled consolidation
  • Include pore pressure for effective stress analysis
  • Uncoupled consolidation
  • Staged groundwater methods
  • Wick drains
  • Unknown boundary condition (seepage face)


  • Elastic or non-linear
  • Mohr-Coulomb, Barton-Bandis, Hyperbolic, or material-dependent slip criterion
  • Natural or artifi cial joints
  • Pressurized joints
  • Staged joint properties
  • Statistical modeling of joint networks


  • Constant or linear distributed loads
  • Concentrated load
  • Seismic load
  • Ponded water load
  • Staged loading
  • Springs
  • Dynamic


  • Undrained and drained behaviour
  • Elastic or non-linear
  • Strength criteria—Mohr-Coulomb, Generalized Hoek-Brown, Cam-Clay, Modified Cam-Clay, Drucker-Prager, discrete function, anisotropic, Mohr-Coulomb with Cap, Softening/Hardening
  • Advanced material models—Slide2 (Power Curve, Barton-Bandis, Vertical Stress Ratio, Hyperbolic, Shear Normal, Shansep, Generalized Anisotropic), FLAC (CY Soil, CH Soil), Plaxis (Hardening Soil, HS Small, Soft Soil, Soft Soil Creep), Dafalias- Manzari, Bounding Surface Plasticity, Mohr-Coulomb with Cap, BBM (Basic Barcelona), and NorSand
  • Staged material properties
  • Datum-dependent properties
  • Isotropic, transversely isotropic, orthotropic elastic models
  • Import from RocData


  • Interactive geometry entry
  • Intuitive workfl ow tabs
  • Boundaries—external, material, excavation, stage, joint, piezo, structural interface
  • Grid/Vertex/Object snapping
  • Sequential staging of excavation and support (up to 300 stages)
  • Plane strain or axisymmetric analysis
  • One-click material assignment
  • Import/Export in .dxf fi les
  • Unlimited undo/redo
  • Right-click editing shortcuts
  • Tunnel Wizard
  • Property Viewer
  • Visibility Tree

Probabilistic Analysis

  • Monte Carlo, Latin Hypercube, Point Estimate methods
  • Random variables—materials, joint properties, field stress
  • Contour/Error plots of statistical output


  • Staged support installation
  • Bolt types – end anchored, fully bonded, cable bolts, Swellex, splitset, tiebacks
  • Liner types—beam, reinforced concrete, geotextile, cable truss
  • Composite liners
  • Reinforcement database
  • Timoshenko or Bernoulli beam models
  • Staged liner properties
  • Elastic or non-linear
  • Peak/Residual strength
  • Interactive support capacity plots (thrust/moment, thrust/shear) for reinforced concrete liners (includes CSA, ACI, EC2 codes)
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