Pile capacity from SPT and CPT; drilled shafts

What this module covers

• Carry SPT data through to a pile base resistance and identify where the uncertainty enters
• Explain why the CPT is the better instrument for pile design
• Apply a limiting base pressure and say how much of the answer it decides
• Describe the workmanship factors that govern a drilled shaft's real capacity

Lessons

1. 16.1

   From field data to pile capacity

   A longer chain than the shallow one, with more places to go wrong.

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2. 16.2

   Drilled shafts

   Where the capacity is decided on site, not on the drawing.

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