Innovative Geotechnics

PileGroup Validation - Example 10. Full scale static lateral load test of a 3x4 pile group in clay (Rollins et al. 2003)

This example is based on the centrifuge lateral load test of a 2 × 2 pile group founded in soft clay reported by Taghavi et al. (2014). The piles in the groups were spaced at 7.0 pile diameters and had a 2×2 symmetrical configuration in plan and were fixed to a rigid cap placed above the ground level. The model pile was fabricated from a hollow steel tube instrumented with six pairs of strain gauges at different levels to enable bending moment measurements along the pile.

PileGroup Validation - Example 7. Centrifuge lateral load test of a 3x4 pile group in loose sand (Zhang et al. 1999)

The example of a 3 x 3 pile group in Basile (2020) is analysed using the analysis mode of linear analysis based on elastic solutions in the PileGroup program. In this example, the piles are constructed in a homogeneous elastic soil layer with a Young’s modulus of 50 MPa and a Poisson’s ratio of 0.5. The Young’s modulus of the pile material is 30 GPa. The pile length is 20 m and the pile diameter is 1 m. The spacing between the piles is 3 m.

PileGroup is a finite-element based program which has been developed to calculate the deformations and loads of pile groups subject to general three-dimensional loadings such as axial and lateral forces and moments applied on the pile caps. The individual piles within the pile group can be vertical or on a batter with the connection between pile heads and pile cap to be fixed, pinned, or elastically restrained by rotational springs.

Pushover analysis, also known as non-linear static analysis or pushover load analysis, is a common structural engineering method used to ass

This blog introduces a very useful tool for pile length variation analysis available in our PileLAT program for laterally loaded piles. When

Partial factors can be applied to soil strength and external loads in the PileLAT program as per the design requirements in Eurocode.

Matlock (1970) proposed p-y curve model for soft clay under both static and cyclic loading conditions. The following figures show the...

This blog explains how to start a new analysis for laterally loaded single piles using the PileLAT program. Step by step, it demonstrates how to (1) Define pile section and length, (2) Create p-y curve model, (3) Define ground profile, (4) Apply pile head loads, (5) Run the analysis, and (6) View the analysis results.