Optum G3 – 3D Geotechnical
Design & analysis Software

Deep excavations are often risky undertakings that require careful planning and, as part of that, detailed and accurate analysis. The reliability and efficiency of OPTUM G2 makes it the ideal tool the simulation of deep excavations. Accurate soil models and a wide array of tools and options for modelling support systems, from retaining walls to anchors and soil nails, are available.

In Retaining walls come in a wide variety of types including mass gravity walls, mechanically stabilized earth walls, gabion walls and sheet pile walls. All of these can be analysed efficiently and accurately using the OPTUM G2. The unique ability to compute rigorous upper and lower bounds on the true factor of safety add confidence in the results. When combined with mesh adaptivity, the result is a superior tool for design of retaining walls.

A road, railway line or canal is normally raised onto an embankment made of compacted soil (typically clay or rock-based) to avoid a change in level required by the terrain. OPTUM G2 provides an efficient and reliable means of simulating the construction of embankments. Settlements and pore pressures are calculated in a straightforward manner and the overall stability of the embankment can be gauged at any time.

In OPTUM G2, factors of safety are computed using Strength Reduction Finite Element Limit Analysis (SR-FELA).Besides short calculation times, SR-FELA also provides the possibility to calculate rigorous upper and lower bounds on the true factor of safety. In practice, this means that the true factor of safety can be determined with within a negligible tolerance in a matter of seconds.

Design of monopile foundations, i.e. most often large diameter steel piles resisting later loads of a large superstructure, can in many cases be carried out using the well-know p-y method. In many cases a full 3D FE soil-structure analysis is carried out e.g. to optimize the design and make significant reduction of steel usage or as a direct customer requirement.