This page provides a technical specification of LimitState:GEO, including details of key features of the software and also system requirements.
Modelling
- Wizards for quick generation of standard problem types.
- Intuitive GUI allows user defined problems to be rapidly constructed.
- Import geometries from CAD (dxf).
- Quick and simple modifications to geometry, boundary conditions, materials and loading.
- Multiple scenarios are handled with ease, and the critical case is always found. No need to separately analyse different potential failure modes.
- Handle uncertain ground conditions by modelling multiple soil types in a single soil body (LimitState:GEO will always pick the critical case).
- Directly apply Partial Factors in the analysis making it straightforward to use with design codes as such as Eurocode 7.
- LimitState:GEO ships with a library of predefined partial factor sets for common design codes/approaches; however, the user can define (and save) an unlimited number of their own partial factor sets.
- Groundwater table (horizontal or variably inclined) easily specified.
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Materials
- Standard material models include cohesive and frictional soils (Mohr-Coulomb). Rigid materials and materials with tension and compression cutoff can also be modelled.
- Soil-structure interfaces easily defined and modelled.
- Switch between drained and undrained analysis with a single mouse click.
- LimitState:GEO ships with a library of pre-defined materials; however, the user can define (and save) an unlimited number of their own materials.
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Eurocode 7
- Built-in Eurocode 7 partial factor sets.
- Simple switching between undrained and drained analyses.
- Specify favourable or unfavourable loading and be alerted following analysis if this is incorrect for the critical mechanism.
- Use the inbuilt 'Scenario manager' to define and solve multiple scenarios in one go (e.g. EC7 Design Combinations 1 & 2, drained and undrained cases etc.).
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Output
- Solutions are based on rigorous and proven limit analysis methods.
- Failure mechanisms are represented as slip-lines (a very familiar concept to geotechnical engineers).
- If required, geo can generate simplified solutions that are amenable to hand checking.
- Animated displacements provide a highly useful visual interpretation of the failure mechanism.
- Analysis report output easily tuned to user preferences.
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System requirements
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Minimum
• 500 MHz processor
• 512 Mb RAM
• 50 Mb free disk space
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Recommended
• 1.5+ GHz processor
• 512+ Mb RAM
• 200 Mb free disk space
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Supported Operating Systems
• Windows Vista
• Windows XP
• Windows 2000
• MacOSX*
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*MacOSX and Linux support are available on request, subject to demand.
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