2.1. Lifting Mechanism

Try these first

1. 1.

   What is a drop hammer?

   Hint

   Think about its function in pile driving.

2. 2.

   Name one type of mechanism used to lift the hammer.

   Hint

   Consider common lifting equipment.

3. 3.

   What is the primary function of a drop hammer?

   • To lift structures
   • To drive piles
   • To lift piles off the ground

   Hint

   Consider what happens when it falls.

4. 4.

   True or False: A heavier pile requires a lighter hammer.

   • True
   • False

   Hint

   Think about energy transfer during driving.

5. 5.

   Given a pile weighing 20,000 kg, determine the recommended weight of the drop hammer necessary for efficient operation and calculate if a hammer weighing 7,000 kg can be used.

   Hint

   Check the ratio and make comparisons.

6. 6.

   If the maximum allowable drop height for a timber pile is 15 feet and you desire the energy to be maximized without exceeding this height, how would you adjust your lift mechanism?

   Hint

   Consider the mechanics of lifting and dropping.