Laterally Loaded Pile Analysis
This module has two independent sub modules.

(a)** Generation of p-y curves.**

In this module p-y curves are generated for the soil layers
based on their properties. Multiple p-y curves are generated
for each layer. API-2011 RP-Geo can be used for clay and sand.
For stiff clay the procedure outlined in ‘L. C. Reese and W. R.
Cox, (1975) can also be adopted.

(b)** Lateral pile deflection analysis. **

Analysis of a pile subjected to lateral load and moment is
carried out in this module. Finite element based approach is
adopted to model the pile and the soil support. The pile is
modelled as an elastic member divided in to a number of bending
elements. The soil support stiffness and strength is modelled
by a series of non-linear discrete springs distributed
continuously along the pile length based on the p-y curves..
The finite element discretization not only takes in to account
the specified pile make-up but is also optimized for better
accuracy by adopting a graded mesh along the pile length. An
iterative procedure based on secant modulus approach is used
for convergence. Beam-column effect due to the vertical load is
also accounted for. The following boundary conditions may be
given at the pile head

(a) prescribed lateral displacement
(b) prescribed rotation
(c) prescribed rotational stiffness.
Data on
the p-y curves may be specified by the user or data generated
in the module based on the soil properties could be used.