SIMCENTER > PILE GROUP APPLICATION

The SimCenter Pile-Group Tool provides a dynamic interface to study the behavior of a pile or pile-group in layered soil.

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SIMCENTER — COMPUTATIONAL MODELING AND SIMULATION CENTER — Official Website

It allows the user to interactively (and nearly instantly) observe the system’s response to changes of the following parameters:

  • soil structure (up to 3 layers of variable thickness) and soil properties

Presented results include:

  • lateral displacement of all piles

Technical background:

The soil-structure system is modeled using a finite-element platform. Piles are represented by displacement based beam-column elements. Soil-structure interaction is represented laterally by p-y springs and tangentially by t-z springs. Spring properties are computed using Hansen’s method [1] and recommendations by the American Petroleum Institute (API) [2]. The Pile-Group Tool constructs a structurally and numerically appropriate finite-element mesh, computes spring properties from soil properties, and places spring elements accordingly. The actual simulation employs a Newton-Raphson iterative procedure to solve the governing nonlinear system of equations.

References:

  1. Brinch Hansen, J. (1961). “The ultimate resistance of rigid piles against transversal forces.”Bulletin №12, Geoteknisk Institute, Copenhagen, 59.

Geotechnical Engineer | Jet Grouting + FEM | Geolablimari.com