Uses of Piles-1 in Civil Engineering

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18 Questions

What is the purpose of using sand compaction piles?

To improve stability and reduce settlement

In what situation would End Bearing Piles be most useful?

In deep uniform bed of soil

Why is seeping water from concrete a concern with Bored Cast-in-situ piles?

It will decrease mechanical properties of the adjacent soil

What is a disadvantage of precast piles compared to other types of piles?

Creates undesirable heave in adjacent ground

What does driving a hollow steel pile into the ground filled with sand achieve?

Improves stability and reduces settlement

When are sand compaction piles particularly helpful?

When footing is underlain by highly compressible stratum

The total load per timber pile should not exceed 65 T.

False

The Eurocode recommends the use of limit state design approaches in geotechnical engineering designs.

True

For undrained conditions, the soil parameters c, f, ca, and g should be considered in determining the allowable pile capacity Pa.

True

The factor of safety for spread foundations is generally larger than that for piles.

False

The drained load capacity is usually more critical than the undrained load capacity in stiff overconsolidated clays.

True

Dynamic approach in pile design estimates load capacity from measured soil properties.

False

For long-term ultimate load capacity of piles in sand, soil parameters c', f', ca' and g' should be undrained values.

False

In a free standing group of piles, the pile cap is always in contact with the underlying soil.

False

Analysis of individual pile forces in a pile group is always simplified using elementary statics.

False

For point-bearing piles, the value of h is always 1 for all spacings.

True

For free standing groups of friction piles in clays, the value of h decreases as the spacing increases.

False

For piles deriving their ultimate load capacity from both side-adhesion and end-bearing, the group effect should only be considered for the end-bearing component.

False

Explore the various applications of piles in civil engineering, including carrying superstructure loads, resisting uplift forces, and compacting loose soil deposits. Learn about techniques like sand compaction piles and drive piles for improving stability and reducing settlement.

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