3.3. Influence of Pile Weight on Hammer Selection

Try these first

1. 1.

   What type of hammer is typically preferred for concrete piles?

   Hint

   Think about weight and stress reduction.

2. 2.

   Why are heavy hammers used for tough soil conditions?

   Hint

   Consider the implications of sheer force during driving.

3. 3.

   What is the recommended hammer type for concrete piles in very loose sand?

   • Single Acting Hammer
   • Drop Hammer
   • Double Acting Hammer

   Hint

   Think about exceptions in specific soil conditions.

4. 4.

   True or False: Single acting hammers are suitable for stiff cohesive soils.

   • True
   • False

   Hint

   Consider the energy required for driving through stiff materials.

5. 5.

   You have two different soil types where you're driving piles. On one side of the site, the soil is mostly sand (non-cohesive), and on the other, it's clay (cohesive). How would you determine the best hammer type for each side?

   Hint

   Analyze the properties of both soil types when making your decision.

6. 6.

   During a construction project, you find that the concrete piles are facing significant resistance in the soil. What hammer type and adjustments would you consider and why?

   Hint

   Keep in mind the integrity of the concrete while addressing the resistance.