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 differ 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 due to load can be from a combination of point, line, circular, triangular, rectangular, polygon, or embankment with sloping sides.
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 results (neutral plane, drag force, transition zone, and shaft resistances), are presented in tables and graphs. The results include input for WEAP bearing graph and drivability analyses.
Settlement of single piles or small pile groups is determined using conventional Cc-e0 approach, E-modulus, or Janbu tangent modulus methods as applicable to each individual soil layer. Distribution of pile compression and ground settlement are also computed and presented in tables and graphs.
Loading Test Simulation
The load-movement response of a pile in a static and bidirectional loading test can be simulated by choosing appropriate t-z functions for each soil layer and a q-z function for the pile toe, such as Hyperbolic, Ratio, Hansen-80%, Zhang, and Exponential, or User Defined. The simulation is particularly useful when back-calculating results of a static loading test.