Practice question

What is 'refusal' in pile driving?

When the operator refuses to drive a pile
The point at which the pile advances little or no further per blow (or per specified blow count), indicating the pile has met required resistance/depth
When the hammer runs out of fuel
When the crane refuses to start

Answer: B — The point at which the pile advances little or no further per blow (or per specified blow count), indicating the pile has met required resistance/depth

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