Soil and Pile Data
All input data are presented and edited using an Excel-type grid and cell system. UniPile 5.0 can have up to 25 soil layers. Soil strength parameters, soil compressibility, as well as pore pressures, can vary from layer to layer and within each layer.
UniPile accepts piles of all types, shapes, and sizes including driven piles and drilled-shafts.
Loads and Excavations
Stress changes can be from a combination of point, line, circular, triangular, rectangular, polygon, or embankment type loads.
Stress distribution is calculated according to Boussinesq, Westergaard, or 2(V):1(H) methods and combines the effects of loading and unloading.
UniPile 5.0 calculates pile resistance according to beta (effective stress), alpha (total stress), SPT, CPT, or CPTU methods. Calculation of neutral plane, dragload, transition zone, shaft resistance, and toe resistance is presented in tabular and graphical form. The results include input for WEAP bearing graph and drivability analyses.
Pile settlement (single pile group) is determined using conventional Cc-e0 approach, E-modulus, or Janbu tangent modulus methods as applicable to each individual soil layer. Pile compression and settlement of the pile are also computed and presented in a tabular and graphical form.
Loading Test Simulation
Simulate the load-movement behavior of the pile in a static and bidirectional loading test by choosing appropriate t-z functions for each soil layer, such as Hyperbolic, Ratio, Hansen-80%, Zhang, and Exponential, or User Defined. The simulation uses the calculated shaft and toe capacities and is particularly useful when back-calculating results of a static loading test.