Question

Identify the type of pile.

(a) Raymond standard concrete pile

(b) Raymond step taper concrete pile

(c) Mac Arthur pile

(d) Base driven pile

The question was posed to me by my school teacher while I was bunking the class.

The doubt is from Different Types of Pile topic in chapter Deep Excavations, Pile Foundations and Caisson of Construction & Building Materials

Answer 1

Right option is (b) Raymond step taper concrete pile

For explanation: Raymond step taper concrete pile consists of Steel sections of suitable length. The bottom of the first shell to be driven is closed by a flat steel plate. The diameter of pile increases in steps at the rate of 25 mm for each successive shell section.