Question

The type of cased piles used in soil, where the driving is very hard?

(a) McArthur cased pile

(b) Raymond standard pile

(c) Western button bottom piles

(d) Swage pile

I had been asked this question during a job interview.

My doubt is from Cased Cast-in-Situ Concrete Piles in section Pile Foundations of Geotechnical Engineering II

Answer 1

The correct choice is (d) Swage pile

For explanation I would say: Swage piles are used with advantage in some soil where it is designed to leave watertight shell for some time before filling the concrete.