Practice Characteristics Of Double Acting Hammers (4.1) - Introduction to Pile Hammer Selection

Practice: Characteristics of Double Acting Hammers

Lesson 4.1Introduction to Pile Hammer Selection

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9 questions

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6 sample questions

Question 1.
What is the main advantage of double acting hammers during pile driving?
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Consider how energy is transferred in pile driving.
Question 2.
Name the two main types of soil that affect hammer selection.
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Think about soil characteristics.
3Question 3.
What is the primary advantage of using double acting hammers?
- Lower blow rate
- Higher blow rate
- Heavier construction
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Consider what aspect of operation is improved.
4Question 4.
True or False: Double acting hammers are generally safe to use with concrete piles in all soil conditions.
- True
- False
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Think about the specific characteristics of concrete piles.
Question 5.
A project needs to drive concrete piles into a site where soil conditions vary from loose sand to compact clay. How can the choice of hammer be optimized?
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Consider hammer characteristics for different soil conditions.
Question 6.
If a contractor has access to heavy single acting hammers and lighter double acting hammers, under what conditions would they exclusively choose one over the other?
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Think about the nature of the soil and the energy requirements.

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