6.1 - Types of Pile Hammers and Selection Criteria
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Practice Questions
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What is a cushioning material?
💡 Hint: Think of something that absorbs impact.
What is the minimum thickness of a wood cushion?
💡 Hint: Recall the number mentioned in the lectures.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is driving stress?
💡 Hint: Consider when stress is at its peak.
True or False: Heavier hammer weight with a longer fall height increases blow efficiency.
💡 Hint: Reflect on what happens to driving stress.
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Challenge Problems
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A project requires driving a 500 lb concrete pile into a soft clay soil. The only available hammer weighs 400 lb and has a fall height of 8 ft. Calculate the blow energy and discuss if this setup will work effectively.
💡 Hint: Remember to check the relationship between hammer weight and pile weight.
Design an appropriate cushioning setup for a concrete pile with a driving stress of 185 psi. Given that timber cushions are hot, what thickness would be advisable based on typical guidelines?
💡 Hint: Refer back to the minimum requirements mentioned in earlier discussions.
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