Novapoint GS Sättning
| • Tabular and graphical presentation | • Non-linear soil models |
| • Automatic generation of stress distribution | • Possibility to vary loads |
| • Easy to perform sensitivity analysis | • Fast calculations |
The user interface
The user interface is designed to be very easy to use. It consists of panes, representing logical steps within the calculation process – panes for project information, soil layering and properties, loads, pore pressure and control parameters. The results are presented in tabular and graphical views, and the results may be exported to other graphical presentation tools.
2D/3D calculations
Settlements are calculated by assuming uniaxial strain and vertical pore water flow (1D formulation). Settlements within a cross section or over a 3D area are performed by a set of 1D calculations. The 1D profiles may be copied and interpolated between existing profiles where the obtained soil layering and parameters may be revised before calculation.
Loads
Loads may be applied as a combination of uniformly and trapezoidal distributed loads over rectangular areas at defined depths. The stress distribution with depth is calculated either by Boussinesq equation for an infinite foundation or the simple 1:n method. The stress distribution may also be imported from an ASCII file generated by other methods. The loads may be permanent or varied with time. This gives for instance the opportunity to simulate the effect of surcharging.
Pore pressure
Time dependent steady-state pore pressure different from hydrostatic may be defined. This for instance may be used to account for 3D steady state flow fields and changes in ground water table with time. Time dependent excess pore pressure may also be defined. This can be used to include excess pore pressures that are not caused directly by excess vertical loads. Instead, the pore pressure may be shear induced or cyclical accumulated pore pressure or pore pressure from pile installation.
Soil model
GS Settlement supports various soil models – Janbu’s model, Krykon and Chalmer’s model. Krykon and Chalmer’s model are taking creep effects into account, although the Chalmers model can also be used without if desired. In addition to these soil models there is a possibility for plugging in a self-programmed User model.
Results
The results: Displacements, strains, pore pressures and stresses are presented in graphical views. The results may also be tabulated and exported to other presentation tools. All crucial data for the calculation and the main results may be printed out as a report.
Sensitivity analysis
A sensitivity analysis is easy to perform by copying an existing calculation point and in the new calculation point changing for example a soil property or the pore pressure profile. The results for both calculation points can then be viewed in the same graphical view making a comparison of for example the displacement or the pore pressure possible.
