Product Overview
Unwedge
Underground Wedge Stability Analysis
Analyze underground tunnel excavations with intersecting discontinuities and visualize the model in 3D. Determine the stability of tetrahedral wedges formed along the tunnel perimeter and ends, and calculate their respective support requirements to achieve the design factor of safety.
Probabilistic Analysis
Obtain probability of failure for probabilistic models using limit equilibrium analysis. Model variability in joint orientation and strength, water pressure, field stress, and supports, by assigning statistical distributions to variables. Obtain wedge location-specific probabilistic plots (histogram, cumulative, and scatter) around the tunnel perimeter.
Support Designer
Achieve the design factor of safety by adding supports like pattern or spot bolts, layers of shotcrete, or uniform pressure to the boundary. The support designer provides specialized views for adding, editing, and visualizing perimeter and end supports.
Specifications
Excavation :
Define/Edit opening section
Import/Export .dxf fi les
Axis trend/plunge
Analyze tunnels, caverns, shafts, and intersections
Joints :
Orientation (dip/dip direction)
Import from Dips
Stereonet view
Multiple joint combinations
Joint combination analyzer
Shear strength (Mohr-Coulomb, Barton-Bandis, Power Curve)
Waviness
Joint structure continuity
Water pressure
Loading :
Seismic loading
Field stress
Pressure
Bolt force
Water pressure
Probabilistic Analysis :
Statistical distributions—normal, uniform, triangular, beta, exponential, lognormal, gamma
Fisher distribution for joint orientations
Histogram, cumulative, and scatter plots
Import joint set statistics from Dips
Monte Carlo or Latin Hypercube simulation
Random or pseduo-random sampling
Highlight failed wedges on plots
View all results from multiple joint combinations of three different joints at once
Stress Analysis :
Constant field stress
Gravity field stress
Advanced analysis options
View stress contours
Support :
2D design views
Pattern bolting, shotcrete, pressure, and spot bolting
Bolt models – Anchored, Grouted Dowel, Cables, Swellex, Split Sets, and user-defined
Bolt orientation efficiency
Interactive editing
Bolt force diagrams
Tunnel Axis Plots :
Optimize axis orientation
Vary trend and/or plunge
Contour plots or 3D charts
2D charts with secondary data
User-defined data
Viewing Options :
3D wedge view (orthogonal and perspective views)
Multi-perspective view
End-wedge view
Probability view
Wedge visibility
Move wedges
Easily rotate, zoom, and pan
Animation
Display options
Wedges :
Tetrahedral or prismatic wedges using Goodman/Shi block theory
Perimeter wedges
End wedges
Failure modes—falling, sliding, lifting, stable
Scale wedge size
Ground surface wedge truncation
Failure mode filter
Minimum wedge size filter
EC7 design standards
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