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The diameter of the under-reamed pile is kept equal to _______ times the diameter of pile steam.

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+1 vote
in Geotechnical Engineering II by (93.7k points)
The diameter of the under-reamed pile is kept equal to _______ times the diameter of pile steam.

(a) 4

(b) 5

(c) 2.5

(d) 2

I had been asked this question by my college director while I was bunking the class.

The doubt is from Under-Reamed Pile Foundations in chapter Pile Foundations of Geotechnical Engineering II

1 Answer

0 votes
by (243k points)
Right option is (c) 2.5

Explanation: Generally the diameter of the under-reamed pile bulb is kept equal to 2.5 times the diameter of pile steam. However, it may vary from 2 to 3 times the stem diameter of pile steam.

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