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Frictional Resistance in Pile Driving
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Frictional Resistance in Pile Driving

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Questions and Answers

What is the typical magnitude of sand densification around a pile zone?

  • 4 times the pile diameter
  • 1.5 times the pile diameter
  • 2.5 times the pile diameter (correct)
  • 3 times the pile diameter

    • How does the unit skin friction vary with depth around a driven pile in sand?

  • It decreases with depth beyond a critical depth.
  • It is inversely proportional to the depth.
  • It remains constant at all depths.
  • It increases linearly with depth beyond a critical depth. (correct)

    • What important factor affects the estimation of frictional resistance during pile driving?

  • The color of the soil
  • The temperature during installation
  • The nature of the pile installation (correct)
  • The presence of nearby trees

    • What is the relationship between the frictional resistance and the pile driving process?

    <p>Frictional resistance is caused during pile driving to densify the soil around the pile.</p> Signup and view all the answers

    What is a conservative estimate for the critical depth L' for driven piles in sand?

    <p>15 pile diameters</p> Signup and view all the answers

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