4.1. Cast in Situ Concrete Piles

Try these first

1. 1.

   What type of pile is cast in situ?

   Hint

   Consider where the pile is made.

2. 2.

   What is the main advantage of non-displacement methods?

   Hint

   Think about how soil is handled.

3. 3.

   What is a cast in situ concrete pile?

   • A pile constructed off-site
   • A pile made directly on-site
   • A temporary support structure

   Hint

   Consider where the concrete is mixed.

4. 4.

   True or False: The non-displacement method is suitable for all soil types.

   • True
   • False

   Hint

   Think about the nature of soil disturbance.

5. 5.

   For a given construction site with a clay layer, you are faced with the decision of selecting a pile installation method. How would you justify your choice?

   Hint

   Refer to the characteristics of clay and how they respond to pressure.

6. 6.

   Compare and contrast the use of displacement and non-displacement methods in terms of their impacts on soil structure.

   Hint

   Think about how each method alters the state of the ground.