Suggest suitable situation for Raft foundation and Pile foundation.

Suggest suitable situation for Raft foundation and Pile foundation.
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1 Answer

Answer :

Suitability of Raft foundation: 

1) Where the allowable bearing capacity of soil is less or the bridge load is heavy. 2) Where the hard soil is not available within 1.5m to 2.5m below the river bed. 3) Where soil mass contains compressible soft pockets and there is possibility of unequal settlement.

Suitability of Pile foundation: 1) Where it is much expensive to provide raft or grillage foundation. 2) Where the soil is very soft and the hard bed is not available at a reasonable depth. 3) Where heavy scouring of river bed is expected. 4) Where heavy concentrated loads are to be taken by foundation.
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Related questions

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Last Answer : Answer: Option B

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Last Answer : Answer: Option D

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Last Answer : Answer: Option C

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Last Answer : Answer: Option B

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Last Answer : Answer: Option B

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Last Answer : Answer: Option D

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Last Answer : Answer: Option C

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