Question

Identify the given Special foundation below.

(a) Grillage Foundation

(b) Mat foundation

(c) Inverted arch foundation

(d) Raft foundation

I got this question by my school principal while I was bunking the class.

My doubt stems from Special Foundations in portion Foundations of Construction & Building Materials

Answer 1

Right option is (d) Raft foundation

The explanation is: The design of raft foundations require careful attention. Usually, the raft is so shaped and proportioned, wherever possible, that the centre of gravity of the imposed load is vertically under the centre of area of bearing ground.