Verification and Validation
XSLOPE's three analysis modes — limit equilibrium, finite-element seepage, and finite-element slope stability (SSRM) — are verified against a two-tier benchmark suite:
- Analytical anchors — problems with exact closed-form solutions, where agreement is limited only by discretization.
- Established-code and published cross-checks — problems from the verification literature and from codes practitioners already trust, run on matched geometry and properties.
All benchmark models, build scripts, and runners are in the repository
(benchmarks/ and the sample files under docs/*/files/), so every number
below can be regenerated. Many are also locked into the automated regression
suite (run_tests.py).
Benchmark classes
| Page | Scope |
|---|---|
| FE Seepage | Confined/unconfined flow benchmarks and analytical anchors |
| FE Slope Stability (SSRM) | Strength-reduction benchmarks |
| Rocscience Slide2 Corpus | The 111-problem Slide2 verification manual, problem by problem |
| Rocscience Groundwater Corpus | The 21-problem Slide2 groundwater (FE seepage) verification manual — 12 built, remainder feature-gated |
| Rocscience RS2 (SSRM) Corpus | The RS2 shear-strength-reduction manual — Parts I–III (68 problems) and the Part IV Slide2-import set (52), the corpus's FEM/SSRM backbone |
| GeoStudio (SLOPE/W) Corpus | The 47-problem SLOPE/W verification manual, cross-referenced |
References
Full bibliographic details for every author-year citation across the corpus pages — the published benchmark papers, the vendor verification manuals, and the analytical-anchor sources — are collected on the shared References page, alphabetical by author.