4. Example Problem on Hammer Selection

Try these first

1. 1.

   What should the hammer weight generally equal in pile driving?

   Hint

   Think about what happens if the weights are mismatched.

2. 2.

   What is the minimum hammer weight for a pile weighing 12,000 kg?

   Hint

   Apply the one-third rule!

3. 3.

   What is the recommended hammer weight for a pile weighing 18,000 kg?

   • 18,000 kg
   • 9,000 kg
   • 5,400 kg

   Hint

   Follow the general guideline.

4. 4.

   True or False: The hammer weight can be less than one-third of the pile weight.

   • True
   • False

   Hint

   Review the minimum weight rule.

5. 5.

   A project needs to drive a 22,000 kg concrete pile but can only acquire a 14,000 kg hammer. Discuss the steps to proceed with this discrepancy.

   Hint

   Revisit the minimum hammer weight theory.

6. 6.

   Determine the consequences of not adhering to hammer selection guidelines in a heavily populated area with sensitive infrastructure.

   Hint

   Consider the environmental impact.