Question

The change in thickness due to pressure increment is given by ______

(a) ∆H = -mv Ho ∆σ’

(b) ∆H = -mv ∆σ’

(c) ∆H = -mv Ho

(d) ∆H = -Ho ∆σ’

The question was asked during an online interview.

Asked question is from Consolidation Process topic in section One Dimensional Consolidation of Geotechnical Engineering I

Answer 1

The correct choice is (a) ∆H = -mv Ho ∆σ’

Easy explanation: The coefficient of volume change with respect to thickness is given by,

\(m_v= \frac{-∆H}{H_0} \frac{1}{∆σ’}  \)

therefore, the The change in thickness due to pressure increment is given by,

∆H = -mv Ho ∆σ’.