Question

Which of the following equation has been recommended by Indian standard for finding reduction factor in water table?

(a) R w = 0.5 (1 + z w2/B)

(b) R w = (1 + z w2/B)

(c) R w = c Nc + σ̅. Nq + 0.5γBNγ

(d) R w = z w2 / B

I had been asked this question in homework.

My doubt is from Effect of Water Table on Bearing Capacity topic in chapter Bearing Capacity of Geotechnical Engineering II

Answer 1

Right option is (a) R w = 0.5 (1 + z w2/B)

For explanation I would say: Rw =Rw2 = 5 (1 + z w2 / B) has been recommended by Indian standard at a depth D1 below the ground level.