Inflection Point Engineering Structural and Civil Engineering Curriculum

Piles

Module from the Structural and Civil Engineering Curriculum curriculum.

Module 4 - Pile Foundations · Learning Objectives · 1. Select driven vs drilled shaft (caisson) by soil and capacity · 2. Compute axial pile capacity (tip + side friction minus FOS 2.5-3.0) · 3. Size pile group and check efficiency factor · 4. Apply uplift capacity (side friction) for tension loads · 5. Plan pile test (static or dynamic high-strain) · Pile Type Selection

Pile Type Typical Capacity Max Depth Pros Cons Use
Driven CFA concrete 75-200 ton 80 ft Fast install, clean Vibration General
Driven steel H-pile 100-400 ton 150 ft Strong, penetrates Corrosion Heavy loads
Driven pipe (closed-end) 100-300 ton 150 ft Good uplift Expensive Uplift
Drilled shaft (caisson) 100-1500 ton 100+ ft High capacity single Soft ground difficult Towers
Helical (screw) 10-80 ton 40 ft Torque installation Capacity limit Small structures
Micropile 50-200 ton 150 ft Tight access Cost Retrofits

Source: Structural_Civil_Engineering_Curriculum_v1.xlsx · Sheet: Piles