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The mv for pressure range 100 to 200 KN/m^2 is 0.74 m^2 /MN. The change in void ratio is 0.157. Find the initial void ratio.

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The mv for pressure range 100 to 200 KN/m^2 is 0.74 m^2 /MN. The change in void ratio is 0.157. Find the initial void ratio.

(a) 2.456

(b) 5.645

(c) 1.121

(d) 8.553

This question was addressed to me during an internship interview.

My question comes from Consolidation Problems in division One Dimensional Consolidation of Geotechnical Engineering I

1 Answer

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Best answer
Correct choice is (c) 1.121

The best I can explain: Given,

mv= 0.74 m^2/MN= 0.74×10^-3 m^2/kN

∆σ’=200-100= 100kN/m^2

∆e= 0.157

\(1+e_0=\frac{∆e_0}{m_v}\frac{1}{∆σ’}\)

e0= 1.121.

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