Skip to content
Queensferry

Module 18

Laterally loaded piles

A cantilever into the ground — and the classification you must make before calculating anything.

What this module covers

  • Classify a laterally loaded pile as rigid or flexible, and say why it must be done first
  • Describe the two failure mechanisms and which one each classification produces
  • Compute the lateral capacity of a short pile in clay and the effect of load eccentricity
  • Explain why deflection normally governs a laterally loaded pile rather than capacity

Lessons

  1. Two mechanisms, and no way to tell which without checking.

    Start lesson →
  2. Which one actually sizes the pile.

    Start lesson →

Module checkpoint

Check what you have taken in

2 questions

  1. Question 1

    A pile has EI = 190 852 kN·m² and sits in soil with kh = 5000 kN/m³. What is the stiffness factor T, in metres?

  2. Question 2

    What usually sizes a laterally loaded pile in practice?