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Foundation Engineering

Underreamed Piles

Ratio of bear...

Question

Ratio of bearing capacity of double Under Reamed (UR) pile to that of single reamed pile is nearly

A

2

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B

1.5

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C

1.2

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D

1.7

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Solution

The correct option is B 1.5
According to IS 2911 : Part III 1973, the ratio of bearing resistance for double under-reamed pile to that of single under-reamed pile is 1.5 for sandy and clayey soils including black cotton soils.

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