Question

Which of the following stages are involved in the construction of under reamed piles?

(a) Concreting of piles and Boring by auger

(b) Concreting the funnel

(c) None of the mentioned

(d) All of the mentioned

This question was addressed to me in an online quiz.

I'm obligated to ask this question of Construction of Under-Reamed Pile Foundation in section Pile Foundations of Geotechnical Engineering II

Answer 1

Right answer is (a) Concreting of piles and Boring by auger

To elaborate: The various stage involved in the construction of under reamed pile foundation are i) boring by auger ii) under-reaming by under-reamer iii) placing reinforcement cage in position iv) concreting of pile caps, plinth beams and curtain walls.