A software application specifically developed to assist engineers in performing stress and settlement calculations involving complex load combinations and site conditions. UniSettle calculates and displays total and effective stress, pore pressure distributions, total and differential settlement, layer compression, consolidation settlement, immediate compression, and secondary settlement versus time. All results are presented in tabular and graphical form that can be exported to Excel format or Tab-delimited text format for further manipulation and reporting. All input and results may be entered in either Customary US or SI units and be toggled back-and-forth as per User preference at any time.

Soil data: UniSettle can have up to 25 soil layers with the soil strength parameters, soil compressibility, as well as pore pressures varying within each layer. Settlement is determined using conventional Cc-e0 approach, E-modulus, or Janbu tangent modulus method. UniSettle Professional supports Terzaghi one dimensional consolidation theory and vertical drains. Units can be SI or Customary US.

Loads and Excavations: All input data are presented and edited using an Excel-type grid and cell system. Stresses can be from a combination of point, line, circular, triangular, rectangular, polygon, or embankment type loads. The User can specify the time period applicable to each individual load, excavation, and pore pressure profile. This allows for the modeling of real site conditions over time.

Effective Stresses: Stress distribution is calculated according to Boussinesq, Westergaard, or 2:1 methods and combines the effects of loading and unloading.

Total Settlement: The total settlement results are a compilation of the immediate compression, consolidation settlement, and secondary compression at a specific point and for a particular analysis method. Settlement is determined using conventional Cc-e0 approach, E-modulus, or Janbu tangent modulus method.

Consolidation vs Time: Calculate the immediate compression, consolidation settlement, and secondary compression as a function of time. The time related settlement uses a combination of both the coefficients of vertical and horizontal consolidation to calculate an average degree of consolidation. UniSettle Professional supports Terzaghi one-dimensional consolidation theory and vertical drains.

UniPile is an application for the design of piles and pile groups using beta-method, alpha-method, – separately or in combination – or SPT/CPT/CPTu methods: Eslami and Fellenius (CPTu), Schmertmann and Nottingham (CPT), deRuiter & Beringen (Dutch CPT), Bustamente (LCPC CPT), Decourt (SPT), O'Neill-Reese (SPT), and Meyerhof (SPT). UniPile considers bearing capacity, residual load, pile group settlement, negative skin friction, drag force, and downdrag. Aspects of drivability for input to WEAP is also included. It also simulates the load-movement response of a test pile in a static loading test performed by a conventional head-down test or bidirectional test (O-Cell).

All results are presented in tabular and graphical form that can be exported to Excel format or tab-delimited text format for further manipulation and reporting. All input and results may be entered in either Customary US or SI units and be toggled back-and-forth at any time.

Soil and Pile data: All input data are presented and edited using an Excel-type grid and cell system. UniPile 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.

Pile Capacity: UniPile 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.

Pile Settlement: 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.