Product Overview
Rocsupport
Ground Reaction Curve
Easy-to-use software for estimating deformation of circular excavations in weak rock. Given the tunnel radius, in-situ stress conditions, rock parameters and support parameters, a ground reaction curve and a support reaction curve are calculated.
Support Options
Install combinations of Rockbolts, Steelsets, Shotcrete, or Custom supports. Users can select from a library of predefined supports using manufacturer’s specifications. Define support installation as the distance from the tunnel face, by percentage of tunnel convergence or by tunnel displacement.
Deterministic or Probabilistic Analysis
Compute a factor of safety with deterministic analysis or probability of failure for probabilistic models using convergence-confinement analysis. Model variability in tunnel radius, in-situ stress, and rock material properties by assigning statistical distributions to variables. Create histogram, cumulative, and scatter plots of statistical data.
Specifications
Analysis Options :
Duncan Fama solution for ground reaction curve
Carranza-Torres solution
Vrakas and Anagnostou solution
Lee and Pietruszczak solution
Barbosa solution
Vrakas (2016) solution
Plot long-term ground reaction curve (specify strength reduction factor)
Deterministic (safety factor) or probabilistic (probability of failure) analysis
Probabilistic Analysis :
Monte Carlo or Latin Hypercube simulation
Random or pseudo-random sampling
Random variables—all tunnel and rock parameters can be defined as random variables
Statistical distributions—normal, uniform, triangular, beta, exponential, lognormal, gamma
Histogram, cumulative, and scatter plots
User-defined plot variables
Best-fi t distribution and regression line
Highlight support failure on histogram and scatter plots
One-click export of charts to Excel
Rock Parameters :
Elastic properties: Young’s Modulus, Poisson’s Ratio
Strength properties: Mohr-Coulomb or Generalized Hoek-Brown
Equivalent Mohr-Coulomb parameters can be calculated from Hoek-Brown parameters (GSI, mi, intact UCS, D)
Built-in charts and tables help estimate suitable values of GSI, mi, intact UCS, and D
Peak and residual strength parameters for Generalized Hoek-Brown criterion
Support :
Pre-defined support types for rock bolts, steel sets, and shotcrete
Combine multiple support types (e.g., rock bolts and shotcrete)
Simple parametric analysis —add, change, or remove support with a few mouse clicks
User-defined support
Support installation—specify distance from face or tunnel convergence
Interactive positioning of support
Longitudinal deformation profile —built-in or user-defined function
Custom support option for each of the three support types
Steel set reinforcement database
Tunnel Parameters :
Tunnel radius
In-situ stress
Viewing Options :
Ground reaction and support reaction views
Tunnel section and plastic zone radius views
Customize display options
Export image files
Info Viewer summary of analysis results
Product Reference
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