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Slide2

Slide2

Slide2 is a powerful, user-friendly, 2D slope stability analysis program using limit equilibrium method. Slide2 can be used for all types of soil and rock slopes, embankments, earth dams, and retaining walls. Slide2 includes built-in finite element groundwater seepage analysis, probabilistic analysis, multi-scenario modeling, and support design.

Slide2

Applications

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Slide2 (formerly “Slide”) is a 2D slope stability program for evaluating the safety factor or probability of failure, of circular and non-circular failure surfaces in soil or rock slopes. Slide2 is simple to use, and yet complex models can be created and analyzed quickly and easily. External loading, groundwater and support can all be modeled in a variety of ways.

Slide2 analyzes the stability of slip surfaces using vertical slice or non-vertical slice limit equilibrium methods like Bishop, Janbu, Spencer, and Sarma, among others. Individual slip surfaces can be analyzed, or search methods can be applied to locate the critical slip surface for a given slope. Users can also carry out deterministic (safety factor) or probabilistic (probability of failure) analyses.

Groundwater Analysis with Slide2

Finite element groundwater (seepage) analysis, for steady state or transient conditions, is built right into Slide2.

Probabilistic Slope Stability with Slide2

Slide2 also has extensive probabilistic modeling and analysis features. Nearly all model input parameters can be defined as random variables, so that a probability of failure or reliability index may be calculated. Sensitivity Analysis can also be carried out. See the Probabilistic Analysis Overview topic for more information.

Software Screenshots

Slide2 Figure 1: Slip surface seeking out weak regions using spatial analysis.
Slide2 Figure 1: Slip surface seeking out weak regions using spatial analysis.
Slide2 Figure 1: Slip surface seeking out weak regions using spatial analysis.
Slide2 Figure 2: Levee with toe drain seepage results with flow lines.
Slide2 Figure 2: Levee with toe drain seepage results with flow lines.
Slide2 Figure 2: Levee with toe drain seepage results with flow lines.
Slide2 Figure 3: Import lateral resistance curve from RSPile.
Slide2 Figure 3: Import lateral resistance curve from RSPile.
Slide2 Figure 3: Import lateral resistance curve from RSPile.
Slide2 Figure 4: Model different scenarios in one file for easy file management.
Slide2 Figure 4: Model different scenarios in one file for easy file management.
Slide2 Figure 4: Model different scenarios in one file for easy file management.
Slide2 Figure 5: Easily create soil profile and interpolate between boreholes.
Slide2 Figure 5: Easily create soil profile and interpolate between boreholes.
Slide2 Figure 5: Easily create soil profile and interpolate between boreholes.
Slide2 Figure 6: Probabilistic analysis results.
Slide2 Figure 6: Probabilistic analysis results.
Slide2 Figure 6: Probabilistic analysis results.
Slide2 Figure 1: Slip surface seeking out weak regions using spatial analysis. Slide2 Figure 1: Slip surface seeking out weak regions using spatial analysis. Slide2 Figure 2: Levee with toe drain seepage results with flow lines. Slide2 Figure 2: Levee with toe drain seepage results with flow lines. Slide2 Figure 3: Import lateral resistance curve from RSPile. Slide2 Figure 3: Import lateral resistance curve from RSPile. Slide2 Figure 4: Model different scenarios in one file for easy file management. Slide2 Figure 4: Model different scenarios in one file for easy file management. Slide2 Figure 5: Easily create soil profile and interpolate between boreholes. Slide2 Figure 5: Easily create soil profile and interpolate between boreholes. Slide2 Figure 6: Probabilistic analysis results. Slide2 Figure 6: Probabilistic analysis results.

Product Highlights

  • What's New in Slide2 2018
  • Model Creation
  • Analysis Methods
  • Seepage Analysis
  • Probabilistic Analysis
  • Designing Supports
  • Surface Altering Optimization
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What's New in Slide2 2018

  • An improved Scenario Manager allows you to run large, complex models in a single Slide2 file quickly and easily
  • 10-15x faster processing of advanced non-circular surface search algorithms with new Surface Altering Optimization
  • Spatial variability allows for advanced probabilistic analysis, accounting for variability within materials
  • New anisotropic material models as developed for Slide3
  • New weak layer option
  • Three support types added: Equivalent Fluid Weight (EFW) pile, Ito & Matsui pile, launched soil nail
  • Newmark seismic analysis can now analyze rigid, coupled, and decoupled methods simultaneously

Model Creation

  • Create and edit complex model geometry with ease.
  • Over a dozen material strength models for soil and rock (e.g. Anisotropic, Generalized Hoek-Brown, SHANSEP).
  • Flexible geometry import options from various file formats, including DXF, RS2, Slide3, and many more.

Analysis Methods

When you’re investing in a slope stability solution, it needs to stack up. Slide2 offers all industry-standard limit equilibrium methods for slope stability analysis, including:

  • Ordinary / Fellenius
  • Bishop Simplified
  • Janbu Simplified
  • Janbu Corrected
  • Spencer
  • Army Corps of Engineers #1
  • Army Corps of Engineers #2
  • Lowe-Karafiath
  • GLE / Morgenstern-Price
  • Sarma (vertical or non-vertical)

Seepage Analysis

Seepage Analysis in Slide2

Slide2 exceeds expectations with built-in finite element groundwater seepage analysis that comes standard with your license. Within Slide2, you can carry out seepage analyses for saturated/unsaturated, steady state or transient flow conditions. The seepage analysis feature can be used independently or in conjunction with slope stability analysis.

Full integration for smoother analysis

Slide2 contains integrated groundwater analysis capabilities for calculating pore pressures for slope stability analysis. Gone are the days of analyzing groundwater separately and worrying about importing results. Since the groundwater modeler, analysis, and data interpretation are fully integrated into Slide2, you’ll build just one model. The data from the slope stability and groundwater analysis are always synchronized.

Or, use it on its own

If all you need is groundwater analysis, you’re in luck. The Groundwater Seepage Analysis module in Slide2 is completely self-contained and can be used entirely independently of the slope stability functionality of Slide2.

Probabilistic Analysis

Probabilistic analysis allows for the assignment of statistical distributions to any input parameter, advanced correlation of parameters, and spatial variability analysis.

Slide2 includes extensive Probabilistic Analysis capabilities for the statistical analysis of slope stability using Monte Carlo or Latin Hypercube simulation techniques. Virtually any input parameter in the model can be defined as a random variable.

Probabilistic analyses can also be used for performing a back analysis to determine material properties or groundwater conditions. If you have a slope that has already failed, you can use the failure geometry and the implicit factor of safety to determine material properties or groundwater conditions.

Whether your current work requires you to perform probabilistic analysis or you simply want more confidence in your design, performing a probabilistic analysis will only improve your slope stability analyses. Best of all, probabilistic results can be easily exported to Excel.

Version 2018 also comes with spatial variability analysis, allowing you to easily account for variability within each material.

For more details on Probabilistic Analysis, including the Monte Carlo and Latin Hypercube methods, statistic distributions, spatial variability, and the use of random variables, visit the Online Help.

Designing Supports

Designing Supports in Slide2

Numerous types of slope reinforcement can be modeled in Slide2, including:

  • End Anchored support (e.g. Mechanically end anchored rock bolts)
  • GeoTextiles (also GeoGrids or Strip reinforcement)
  • Grouted Tiebacks / Ground Anchors
  • Piles / Micro Piles
  • Soil Nails
  • RSPile (pile support capacity computed with RSPile)
  • Launched Soil Nails
  • User Defined support

Surface Altering Optimization

Slide2 employs an efficient slip surface search method known as Surface Altering (SA) optimization. SA is a powerful tool to yield lower factors of safety by modifying geometry of a given slip surface. This option has been shown to be much faster (10 to 15 times) than the Monte Carlo algorithm for most cases and is the new default search optimization method for non-circular slip surfaces.

Getting Support
Help yourself to a comprehensive database of product support. Subscribe to get free upgrades and expert help for your software. See the latest software updates and download the newest version.