SLAMMER
U.S. Geological Survey (USGS)
Sliding-block (Newmark) analysis of earthquake-induced slope displacement, with a built-in strong-motion library.
Get it from the vendorGeotechnics has the thinnest free coverage here, and that is not an accident: slope stability, foundation and retaining wall software is a small professional market with almost no mature open-source projects. What does exist comes from two sources — tools developed with public funding in the US, and soil data repositories.
In practice that means you will find a soil nail wall analysis tool, groundwater models, and soil surveys with engineering properties. What you will not find is a full free replacement for the commercial slope stability and foundation packages.
So the advice in this field is different: use these tools for interim checks, for learning the method and for working with soil data — not as a substitute for the design software you put your signature on.
38 results
SSAP — Slope Stability Analysis
Lorenzo Borselli, Università di San Luis Potosí
Limit equilibrium slope stability analysis, with automatic search for the critical surface.
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Strata
Albert Kottke
One-dimensional seismic site response analysis: how soil layers amplify ground motion, by the equivalent-linear method with randomised soil properties.
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Total Open Station
Total Open Station developers
Downloads survey data from total stations to the computer and converts it to formats such as CSV, DXF and GeoJSON for CAD and GIS.
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VS2DI
U.S. Geological Survey (USGS)
Graphical package for 2D simulation of unsaturated flow with solute or heat transport.
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WhiteboxTools
Whitebox Geospatial
Hundreds of geospatial analysis tools, especially strong on terrain and LiDAR point clouds.
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Hazus
Federal Emergency Management Agency (FEMA)
FEMA's free GIS-based system for estimating potential losses from natural disasters – floods, hurricanes and earthquakes.
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HYDRUS-1D
PC-Progress with University of California Riverside (J. Simunek, M. Sejna, M.Th. van Genuchten)
One-dimensional finite element model of water, heat and solute movement in unsaturated soil: infiltration, contaminant leaching to groundwater and root uptake.
Get it from the vendorPostGIS
PostGIS Project Steering Committee (OSGeo)
An extension to the PostgreSQL database that adds storage, indexing and analysis of geospatial data through SQL queries.
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Scoops3D
U.S. Geological Survey (USGS)
Free USGS 3D slope stability analysis over a whole digital elevation model, finding the critical slip surface for each cell.
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SNAP-2 (Soil Nail Analysis Program)
Federal Highway Administration (FHWA)
FHWA's soil nail wall design program – nails, facing, internal and external stability and global slope stability in a single package.
Get it from the vendorSUTRA
U.S. Geological Survey (USGS)
Finite-element simulator for saturated–unsaturated, variable-density groundwater flow with solute or heat transport.
Get it from the vendorTRIGRS
U.S. Geological Survey (USGS)
Grid-based regional slope-stability model for rainfall infiltration, used to forecast shallow landslides.
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Yade
Yade developers
Open-source framework for discrete element method (DEM) simulations: granular materials, particles and multiscale coupling, scripted in Python.
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