Question

The ___________ obtain the bearing power of the piles by equating the soil resistance to the energy of the blow.

(a) Static formulas

(b) Dynamic formulas

(c) Wave action theory

(d) Empirical formulas

The question was posed to me in an international level competition.

I'd like to ask this question from Pile Driving Formulas topic in chapter Deep Excavations, Pile Foundations and Caisson of Construction & Building Materials

Answer 1

Right option is (b) Dynamic formulas

For explanation I would say: Extreme care should be taken while adopting dynamic formulas. There is no dynamic formula which can be applied for all the varying conditions of the work. Most of the dynamic formulas are based on some rational approach.