2.3. Guidelines for Cohesive Soil

Try these first

1. 1.

   What are the two primary soil classifications discussed?

   Hint

   Think of soils that do or do not stick together.

2. 2.

   What type of hammer is suggested for concrete piles?

   Hint

   Consider the hammer type based on weight.

3. 3.

   What is the recommended hammer type for concrete piles in tough soil conditions?

   • Drop Hammer
   • Double Acting Hammer
   • Single Acting Hammer

   Hint

   Think about what type of hammer is typically heavier.

4. 4.

   True or False: Vibratory hammers are recommended for driving all types of piles.

   • True
   • False

   Hint

   Consider the type of soil when selecting a hammer.

5. 5.

   You are tasked with driving a concrete pile into dense clay with a blow count of 55. What hammer type would you select and explain why?

   Hint

   Consider the principles of energy and stress when selecting your hammer.

6. 6.

   Analyze a scenario where clay transitions from soft to stiff. How would your hammer choice adapt, and what factors would influence this?

   Hint

   Think about how the resistance changes with soil type.