v0.1.59 · in active development · AGPL-3.0-or-later

Open-source geotechnical
software, built in the open.

OpenGeoRock is a growing suite of Python programs for slope stability, rock mechanics and finite-element geotechnical analysis — designed as a rigorous, modern alternative that engineers and researchers can read, extend and trust.

Explore OGR Slip2D Source on GitHub Downloads SOON

Programs planned

5 in the suite

Source available

OGR Slip2D · v0.1.59

License

AGPL-3.0 · or later

Stack

Python 3.11 · PySide6

01 / The project

A modern, transparent toolkit for ground engineering.

OpenGeoRock is a community-driven suite of geotechnical analysis programs, written entirely in Python and released under AGPL-3.0-or-later so anyone can read the source, reproduce results, and extend the engines. The source of OGR Slip2D is public today.

Most of the software geotechnical engineers rely on is closed, expensive, and opaque — a black box at the centre of decisions about dams, slopes, tunnels and foundations. OpenGeoRock is an effort to rebuild those core tools in the open, with a clean engineering core, a modern desktop interface, and a test suite that anyone can inspect.

The suite will grow incrementally. We are starting with 2D slope stability — the tool practitioners reach for most — and will expand into material databases, 2D/3D finite element analysis, and 3D limit equilibrium over the coming years.

Design principles

Readable engines

Computation cores are pure Python, documented, and decoupled from the UI so they can be scripted or embedded.

Modern desktop UX

A clean PySide6/Qt6 interface with a proper modeller, interpreter, and an embedded Python terminal for automation.

Verifiable results

Benchmarks and reference cases ship with the source. Any run can be reproduced from its project file alone.

Built for contribution

Small, well-scoped modules. New methods, materials and analysis types are meant to be added by the community.

02 / First release

OGR Slip2D / ogr-slip2d

A modern, open-source 2D slope stability program built on the Limit Equilibrium Method: seven methods over circular and non-circular surfaces, eighteen strength models, external loads, reinforcement and pseudo-static seismic analysis. It also ships a full finite-element groundwater engine — saturated, unsaturated and transient seepage coupled back into stability — plus probabilistic and sensitivity analysis, Eurocode 7 partial factors, DXF interoperability and a command-line interface. The source is public and every method is published with the reference case it was validated against.

v0.1.59 · public source · pre-release, in active development

modeler · results · embedded python terminal

Modeler workspace with slope geometry, slip surfaces, and embedded Python terminal

fig · 01 / modeler

Geometry editor · critical surface · scripting console

interpret · result viewer

Interpret module showing FoS summary and surface table

fig · 02 / interpret

Result post-processing · FoS summary · surface table

define materials · properties

Define Materials dialog with Mohr-Coulomb properties

fig · 03 / materials

Strength & pore-pressure definition

surface options · search config

Surface options dialog for configuring failure surface search

fig · 04 / surfaces

Search method & filters

Lead developer

Samuel Sáez López · UPCT, PhD programme

License

AGPL-3.0-or-later

Stack

Python 3.11+ · PySide6 (Qt6)

Analysis methods

Fellenius · Bishop · Janbu · Spencer · GLE/Morgenstern–Price · Lowe–Karafiath

Surfaces

Circular & non-circular · 6 search algorithms

Strength models

18 — Mohr–Coulomb · Hoek–Brown · Barton–Bandis · SHANSEP · anisotropic

Groundwater

FE seepage — saturated · unsaturated · transient

External loads · pore pressure · seismic (k_h, k_v) · tension cracks

Probabilistic

Monte Carlo · Latin hypercube · sensitivity sweeps

Design codes

Eurocode 7 — DA1-C1 · DA1-C2 · DA2 · DA3

Interoperability

DXF import & export · PDF reports · CLI · English / Spanish

Test suite

1280 tests passing · validated against external references

03 / The suite

Five programs, one open ecosystem.

OGR Slip2D is the first piece. Over the coming years the suite will grow to cover the workflows a modern geotechnical office runs daily — from material databases to 3D finite element analysis.

OGR Slip2D2D slope stability

Limit-equilibrium slope stability in 2D. Circular and non-circular surfaces, staged loading, finite-element groundwater flow, reinforcement, pseudo-static seismic analysis and probabilistic assessment. Source public under AGPL-3.0.

In development

OGR Datamaterial & rock-mass database

A curated, queryable database of soil and rock-mass properties, correlations and empirical charts, feeding the rest of the suite with consistent inputs.

Planned

OGR FEM2D2D finite element analysis

Elasto-plastic 2D FEM for stresses, deformations and strength reduction, for excavations, tunnels and embankments. The finite-element kernel already ships inside Slip2D for groundwater flow.

Planned

OGR Slip3D3D slope stability

Extension of the limit-equilibrium engine to fully three-dimensional failure surfaces — for open-pit mines, landslides and complex terrain.

Planned

OGR FEM3D3D finite element analysis

Full 3D finite-element solver for rock and soil mechanics: stress analysis, deformation, and coupled groundwater flow on arbitrary geometries.

Planned

04 / Who is behind it

A small team, based in Cartagena.

OpenGeoRock is led and coded by Samuel Sáez López as part of his PhD at the Universidad Politécnica de Cartagena (UPCT), under the academic direction of Prof. Emilio Trigueros Tornero.

Lead developer · Author

Samuel Sáez López

Mining Engineer · Universidad Politécnica de Cartagena (UPCT)

            PhD student ·
            Technology and Modeling in Civil, Mining, and Environmental Engineering
          

Samuel is a mining engineer and PhD candidate at UPCT. He is the author and maintainer of the OpenGeoRock codebase, and leads the design of both its computational engine and its interface. His doctoral research on slope stability and rock mechanics directly informs the numerical methods shipped in OGR Slip2D.

LinkedIn samuel.saez@edu.upct.es GitHub

Academic advisor · Collaborator

Emilio Trigueros Tornero

Professor · Director of the PhD programme · UPCT

Prof. Trigueros is the academic director of Samuel's doctoral research at UPCT and a close collaborator on the scientific direction of the OpenGeoRock project. He contributes guidance on rock mechanics, research methodology and the broader geotechnical context in which the suite is being developed.

LinkedIn UPCT profile

Authorship & intellectual property

To make the division of contributions unambiguous, the OpenGeoRock source and this site state explicitly:

Code author

Samuel Sáez López is the author and copyright holder of the OpenGeoRock source code.

Advisor

Emilio Trigueros Tornero contributes academic direction and scientific collaboration.

License

All source is released under the GNU Affero General Public License v3.0 or later. Up to v0.1.42 the project was GPL-3.0; it moved to AGPL in v0.1.43 so that a modified version offered as a network service must publish its source.

Contributions

Accepted under the terms of the project's CLA, published in the repository.

Academic & professional collaborators

Academic institution

Universidad Politécnica de Cartagena

PhD programme · research context

Professional collaborator

IMGA S.L.P.

Ingeniería Minera, Geológica y Ambiental

Open-source geotechnical software, built in the open.

A modern, transparent toolkit for ground engineering.

Five programs, one open ecosystem.

A small team, based in Cartagena.

Authorship & intellectual property

Good geotechnical software is built collectively.

Open-source geotechnical
software, built in the open.