Geotechnical analysis, from slope to tunnel

PLAXIS 2D builds the embankment in stages, lift by lift. Consolidation analysis tracks pore pressure and settlement between lifts. A Safety phase runs phi-c reduction for the factor of safety. The governing failure mechanism plots so you can see what fails.

PLAXIS 3D models the whole group: piles, raft and soil in one mesh. Embedded beam and interface elements carry the pile-soil contact, slip and gap included. Pile-soil-pile interaction and group settlement come straight from the analysis. The load split between piles and raft reads from the results.

OPTUM G2 computes an upper and a lower bound on collapse. The true factor of safety provably sits between them. Strength Reduction FELA resolves slope safety factors in seconds. Adaptive meshing packs elements into the failure zone on its own.

Bearing capacity computes directly as a one-step limit load. Upper and lower bounds bracket the true value from both sides. Seepage runs on the same model, steady-state or transient, saturated or unsaturated. Limit, seepage and consolidation analysis all share that one 2D model.

OPTUM G3 runs limit analysis on a full 3D solid model. Bearing capacity and collapse loads come with rigorous upper and lower bounds. Excavation stages model by activating and deactivating regions of the solid. Adaptive meshing refines the failure zone without manual mesh studies.

GEO5 gives each task its own program. The wall programs check earth pressures, sliding, overturning, bearing and the RC stem. Settlement runs in its own module on the same shared soil data. Every result prints as a submittal-grade report to your chosen code.

The Pile and Pile Group programs cover axial and lateral design. Bored, driven and CFA pile types run, with negative skin friction included. Pile CPT designs straight from cone penetration data. Verification follows Eurocode 7, LRFD or your local standard, with full reports.

CESAR 3D meshes the ground and structure into one FE model. Staged construction runs unlimited excavation, embanking and tunnelling stages. Soil behaviour picks from Mohr-Coulomb, Hardening Soil, Cam-Clay or Hoek-Brown. One solver couples mechanics, groundwater flow, heat and dynamics.