Case Studies#

End-to-end worked examples on realistic engineering problems, authored and validated by the Deltares team. Each case study demonstrates a complete probabilistic workflow — from problem definition and uncertainty characterisation to reliability results and interpretation.

These examples are more detailed than the tutorials — they use realistic model parameters, discuss engineering context, and show how to interpret results in a professional setting.


Geotechnical

Reliability of a Retaining Wall

Assess the probability of failure of a gravity-based retaining wall under uncertain soil parameters. Combines FORM analysis with Monte Carlo.

FORM Reliability Geotechnical
■□□ Beginner
Connect D-Stability model (GEOLIB)

How to connect D-Stability to a probabilistic workflow using the GEOLIB Python library. Demonstrates the effect of load variability and correlated soil parameters.

D-Stability Stochastic loads Slope stability Geotechnical
■□□ Beginner
Connect D-Settlement model (GEOLIB)

Probabilistic settlement analysis by coupling D-Settlement to the probabilistic engine via a Python wrapper. Propagate soil parameter uncertainty through a full settlement model.

D-Settlement External model Uncertainty propagation
■□□ Beginner
Connect D-Sheetpiling model (GEOLIB)

Reliability analysis of a sheet pile wall using D-Sheetpiling as the structural model. Demonstrates how to wrap a commercial geotech solver and run FORM and Monte Carlo through it.

D-Sheetpiling External model FORM
■□□ Beginner
Connect D-Stability model(PTK Wheel)

Slope stability reliability analysis driven by D-Stability. Uses the PTK Python wheel integration to evaluate the limit state function, enabling FORM and Monte Carlo runs directly against the D-Stability engine.

D-Stability PTK wheel FORM
■□□ Intermediate

Flood Defences

Dike Safety Assessment (Overtopping + Piping)

Full assessment of a primary flood defence against two failure mechanisms: wave overtopping and internal erosion (piping). Shows how to combine failure probabilities into a system result aligned with the Dutch WBI assessment framework.

System reliability FORM WBI
■□□ Beginner
Fragility Curve for a Storm Surge Barrier

Compute a fragility curve for a hydraulic structure as a function of water level, accounting for uncertainty in structural resistance and load parameters.

Fragility curves Uncertainty analysis Hydraulics
■□□ Beginner

Note

Examples marked coming soon are planned for upcoming releases. Want to suggest a case study or contribute one? Open a discussion on GitHub.