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Q: Which of the following type of pile is not used in building foundation?
  • A. End bearing piles
  • B. Bakelite piles
  • C. Compaction piles
  • D. Friction piles
Correct Answer: Option B - End bearing pile– It is used to transfer load through water or soft soil to a suitable bearing stratum. Such piles are used to carry heavy loads safely to hard strata. Multi-storeyed buildings are invariably founded on end bearing piles, so that the settlements are minimized. Friction pile– It is used to transfer loads to a depth of a friction load carrying material by means of skin friction along the length of the pile. Such piles are generally used in granular soil where the depth of hard stratum is very great. Compaction pile– It is used to compact loose granular soils, thus increasing their bearing capacity. The compaction piles themselves do not carry any load.
B. End bearing pile– It is used to transfer load through water or soft soil to a suitable bearing stratum. Such piles are used to carry heavy loads safely to hard strata. Multi-storeyed buildings are invariably founded on end bearing piles, so that the settlements are minimized. Friction pile– It is used to transfer loads to a depth of a friction load carrying material by means of skin friction along the length of the pile. Such piles are generally used in granular soil where the depth of hard stratum is very great. Compaction pile– It is used to compact loose granular soils, thus increasing their bearing capacity. The compaction piles themselves do not carry any load.

Explanations:

End bearing pile– It is used to transfer load through water or soft soil to a suitable bearing stratum. Such piles are used to carry heavy loads safely to hard strata. Multi-storeyed buildings are invariably founded on end bearing piles, so that the settlements are minimized. Friction pile– It is used to transfer loads to a depth of a friction load carrying material by means of skin friction along the length of the pile. Such piles are generally used in granular soil where the depth of hard stratum is very great. Compaction pile– It is used to compact loose granular soils, thus increasing their bearing capacity. The compaction piles themselves do not carry any load.