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Graphical and Statistical Analysis of Orientation Data

Planar Rock Slope Analysis

Quickly and easily define planar wedge models, visualized in 2D and 3D. Perform planar sliding stability analysis using Limit Equilibrium Method. Model the effects of joint shear strength, water pressure, seismic and external forces, and supports in the computation of the factor of safety.

Rocscience RocPlane
Rocscience RocPlane

Probabilistic Analysis

Determine the probability of failure of your model by assigning statistical distributions to variables including the slope geometry, joint orientation and strength, water and seismic forces, and supports. View the statistical data in histogram, cumulative and scatter plots.

Bench Design Tools and Charts

Conduct Bench Design as an extension of RocPlane’s Probabilistic analysis feature. Input design parameters and statistical joint information to optimize the bench slope angle. Calculate required bench width, considering spill width and backbreak distance. Results can be output using a number of different statistical charts including total probability of failure, volume of failed wedges, minimum bench width, and backbreak cell probabilities.

Rocscience RocPlane

Features in RocPlane

Technical Specifications


  • Deterministic or probabilistic
  • Metric or imperial units
  • Eurocode design standards
  • Bench design

Analysis Results

  • Sidebar information panel
  • Info Viewer analysis summary
  • One-click export of data and charts to Excel


  • Batch Compute model fi les
  • Automate Model Inputs from Excel

Bench Analysis

  • Optimize bench design
  • Fixed bench width or inter-ramp angle
  • Joint persistence determines if wedge can form


  • Water pressure on joints
  • Ponded water analysis
  • Seismic coefficient
  • External forces
  • Pressure (surcharge or support)

Probabilistic Analysis

  • Statistical distributions—normal, uniform, triangular, beta, exponential, lognormal, gamma
  • Histogram, cumulative, and scatter plots
  • Probability of failure, reliability index
  • Monte Carlo or Latin Hypercube simulation
  • Random or pseudo-random sampling
  • Shear strength—define variability of mean strength envelope or individual strength parameters
  • Correlation coefficient for cohesion and friction angle
  • Best fit distribution, regression line
  • Highlight failed wedges on plots
  • Interactive sampler
  • Select random wedges

Sensitivity Analysis

  • Determine effect of individual variables on safety factor
  • Multiple variables on one plot

Shear Strength

  • Mohr-Coulomb
  • Barton-Bandis
  • Power Curve
  • Hoek-Brown
  • Waviness angle

Slope Properties

  • Dip angle of slope, upper face, and failure plane
  • Slope height
  • Bench width
  • Overhanging slope
  • Unit weight


  • Rock bolts
    • Define bolt properties from the following bolt types: Mechanically Anchored, Grouted Dowel, Cable Bolt, Split Set, Swellex, and Simple Bolt Force
    • Option to use bolt Shear Strength
    • Option to apply Bolt Orientation Efficiency factor
  • Pressure
  • Active or passive support

Tension Crack

  • Optional tension crack plane
  • Vertical or non-vertical
  • User-defined or automatic location (minimum FS)

Viewing Options

  • 3D wedge view
  • Interactively rotate, zoom, and pan
  • Move wedge along sliding plane
  • 2D view with dimensioning and annotations
  • Export image fi les: .png, .jpg, .gif, .bmp, .emf, .wmf

Wedge Size

  • Scale wedge size by height, bench width, persistence, and volume
  • Minimum wedge size

RocPlane across Applications

Assess the probability and scale of localized bench failures. Design adequate bench widths and slope face cuts using bench design tools to reduce the risk of failed material from reaching operating levels below.

Assess the planar stability of slopes created by the excavation of rock cuts.

Explore the latest features in RocPlane

Save time with the Batch Compute feature which enables you to compute several deterministic and/or probabilistic RocPlane model files (.pln, .pln4) at once and quickly generate results to text or Excel format.

Automate a deterministic or probabilistic analysis in RocPlane by reading in various numerical input data from an Excel template, and quickly generating computed results to text or Excel format.

Apply Ponded Water Pressure to the Slope and/or Upper Face by specifying the depth of ponded water. Plane Water can also be modeled in conjunction with Ponded Water with assumption of either pervious or impervious slope face.

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