2D Slope Stability and Cross Sections in the Palm of Your Hand
Build slope geometries from field survey data, digitize stratigraphic layers, and compute the Factor of Safety (FS) using established limit-equilibrium methods (Bishop, Janbu, Spencer, and GLE) directly on your Android phone or desktop web browser.
100% local and offline calculation engine • No internet connection required to compute
Rigorous Geotechnical Engineering in Field and Office
From initial field topography to automated search of critical slip surfaces.
Method of Slices (2D LEM)
Industry-standard 2D limit-equilibrium formulations: Fellenius, Simplified Bishop, Janbu Simplified/Corrected, Spencer, and General Limit Equilibrium (GLE) with circular and non-circular slip search.
Geological CAD & 2D Profiles
Construct profile sections from mapped outcrop coordinates or survey elevation points. Digitize geological contacts separating residual soil, saprolite, and rock horizons with intuitive vector tools.
Water, Surcharge & Seismic Loads
Model pore-water pressures along the slip surface via piezometric water lines or pore pressure ratio ($r_u$), apply uniform or line crest surcharges, and evaluate pseudo-static seismic acceleration ($k_h$, $k_v$).
Mohr-Coulomb & Non-Linear Models
Assign effective cohesion ($c'$), internal friction angle ($\phi'$), and total/saturated unit weights ($\gamma$). Supports non-linear rock mass (Hoek-Brown) and joint roughness (Barton-Bandis) criteria.
Support & Reinforcement Modeling
Simulate stabilizing contributions from prestressed ground anchors (active support) and rock bolts or micropiles (passive support), including automated back-analysis of force required to reach a target FS.
Calculation Sheets & CAD Exports
Generate clean PDF technical calculation sheets with slice stress profiles, export slice coordinates to CSV for third-party auditing, and download DXF vector geometry files for CAD workflows.
Technical Scope: What RockGeo Solves
Engineering transparency grounded in verified computational benchmarks.
| Capability | RockGeo (Mobile & Web) | Recommended Engineering Practice |
|---|---|---|
| 2D Limit Equilibrium (LEM) | Computed Locally Iterative convergence for Bishop, Janbu, Spencer, and GLE. |
Verify convergence criteria and examine interslice force inclination assumptions. |
| Critical Slip Arc Search | Automated Search Grid search of centers and radii to isolate the minimum FS surface. |
Ensure critical surface aligns with structural discontinuities observed in the field. |
| Piezometric Water Line | Supported Polygonal water table or pore pressure ratio ($r_u$) parametrization. |
Field monitoring using Casagrande or vibrating wire piezometers in critical slopes. |
| Site & Lab Characterization | External Input Properties are measured externally and entered into the software. |
Laboratory shear tests (direct shear, triaxial) and geotechnical boring logs. |
| Legal Sign-Off & Liability | Not Applicable Software cannot provide professional engineering certification. |
Mandatory review and formal stamp by a licensed geotechnical engineer or geologist. |
Scientific Verification & Benchmark Rigor
Algorithms verified against canonical benchmark cases in international literature.
RockGeo's mathematical engines have undergone automated regression testing against landmark benchmarks by Duncan & Wright (2005), Fredlund & Krahn (1977), and Hoek & Bray, showing deviation lower than 1% across homogeneous and layered slope profiles.
Ready to model slope stability right at the outcrop?
Download RockGeo on Google Play for Android or explore the synced cloud portal on any desktop computer.