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

Groundwater

• 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)

Joints

• 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

Loads

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

Materials

• 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

Modelling

• 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

Support

• 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)