D-Geo Stability

For The Netherlands the safety and stability of the primary sea and driver dikes is essential since over half the population lives below sea level. In total, 3,500 kilometres of primary dikes and over 100,000 kilometres of other embankments protect the country from flooding. Over the past 75 years, the stability of the majority of the dikes and embankments has been checked using methods and tools developed by Deltares, the leading Dutch Institute in this field. Through Deltares systems these tools are available in English for the International GeoEngineering community. Deltares systems tools come with a comprehensive manual and extensive validation and verification reports.


D-Geo Stability is a slope stability package for soft soils. Previous releases of D-Geo Stability were named MStab. Deltares systems tools follow best practice, and are developed according to modern software standards; therefore they are user-friendly and easy to learn.

1107Bishop slip circle with shear stresses

Besides features generally found in other slope stability packages, D-Geo Stability offers several specific features for the design of river dikes and road embankments:

Integration with other Deltares products
Integration with the suite of other Deltares systems products. For example, settlements can be introduced using the D-Settlement program. In this way, safety analyses for various (settled) construction stages can be performed.

1114Settled geometry can be imported from D-Settlement

  • The Reliability analyses module
    The reliability module supports the Eurocode 7, allowing for the input of partial safety factors. A stochastic distribution of parameters allows for semi-probabilistic analysis as well as probabilistic analyses. Using the model default parameters for stochastic properties, the user can easily switch from a standard safety analysis to a reliability analysis without additional input data.

1109Influencing factors, resulting from a reliability analysis

  • Probabilistic Random Field method
    Experts in probabilistic analysis can use the Bishop Probabilistic Random Field module, allowing users to take into account spatial variation of parameters.
  • Uplift calculation
    The Uplift module allows for the safety analysis of river embankments under the influence of changing water levels in aquifers. This may result in the uplift of the hinterland, a mechanism causing numerical difficulties in most FEM approaches.

1115Uplift failure mechanism for river embankments

  • Integration with Watex
    The movement of rising water levels as a result of extensive rainfall events is an important issue for river embankments. The Deltares Watex program allows for fast analysis, resulting in time dependant water pressure distributions that can be imported into D-Geo Stability .

How to get D-Geo Stability?

Service Packages

This version is available if you have purchased a Service package. You can order a Service packages via our Software sales Service team (software@deltares.nl) The software can be downloaded via our Download portal. You don’t need a license file to do this. You can use the software in Demo mode without a license file.
By purchasing a Service package you will receive a license file to unlock full functionality (according to purchased package).
Our Software sales Service team will provide you with instructions on how to get the software working with a license file.

Online Software

You can also use our Geotechnical software products via the internet (Software as a Service – SaaS), on subscription basis. For more information, please see Online Geotechnical Software.