Question

What do you understand from the given figure below?

(a) Foundation on cavities

(b) Spacing of footings

(c) Foundation on black cotton soil

(d) Foundation on an old well

This question was addressed to me by my college director while I was bunking the class.

My enquiry is from Foundations Based on Different Conditions in portion Foundations of Construction & Building Materials

Answer 1

Right choice is (d) Foundation on an old well

The explanation is: In case of old wells, all those materials should be removed from the well and the well, thus cleared, should be filled with hard material. Then suitable beams or arches should be provided to span the well.