OGR Slip2D documentation
How to use the program, the theory behind its results, how it is verified and the reference for its scripting interfaces. The documentation is written for version 0.1.235.
1Getting started
Install OGR Slip2D, build and analyse your first slope, and find your way around the program.
2User guide
The steps of a model in the order you build it: geometry, materials, water, loads, supports, search and results.
- 2.1Project settings
- 2.2Geometry and boundaries
- 2.3Materials
- 2.4Water and pore pressure
- 2.5Loads and seismic loading
- 2.6Supports
- 2.7Slip surfaces and search
- 2.8Computing and interpreting results
- 2.9Finite-element groundwater
- 2.10Probabilistic and sensitivity analysis
- 2.11Design standards
- 2.12Reports, scripting and the command line
3Theory manual
The equations OGR Slip2D solves, with their assumptions, their original sources and how they are implemented.
- 3.1Limit equilibrium and the factor of safety
- 3.2Methods of slices
- 3.3Interslice forces, convergence and admissibility
- 3.4Slip-surface search
- 3.5Shear strength models
- 3.6Pore pressure and unsaturated strength
- 3.7Finite-element seepage
- 3.8Rapid drawdown
- 3.9Seismic analysis
- 3.10Support forces
- 3.11Probabilistic analysis
- 3.12Partial factors (Eurocode 7)
4Verification
How results are checked against published cases and closed-form solutions, case by case.
5Reference
The MCP server, the command line, the Python API, the file format, error codes, notation and bibliography.
How to read it
Conventions used in the manual
- Chapters, sections, equations, figures and tables are numbered, so a reference such as Eq. (3.2.4) can be cited and stays valid.
- Each formula cites its original scientific source, which is listed in the bibliography.
- Boxes titled In OGR Slip2D describe what the program does (defaults, checks and limits) and link to the source file where it is done.
- Limitations that the code itself declares are reported in warning boxes.
- All pages print cleanly and are also available in Spanish.