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If the height of soil specimen is reduced from 0.28 cm to 1.926cm due to an increment of load of 100KN/ m^2. Find the coefficient of volume change.

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in Geotechnical Engineering I by (102k points)
If the height of soil specimen is reduced from 0.28 cm to 1.926cm due to an increment of load of 100KN/ m^2. Find the coefficient of volume change.

(a) 0.74m^2/MN

(b) 0.98m^2/MN

(c) 0.84m^2/MN

(d) 0.67m^2/MN

This question was addressed to me during an interview for a job.

I would like to ask this question from Consolidation Problems topic in section One Dimensional Consolidation of Geotechnical Engineering I

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The correct answer is (a) 0.74m^2/MN

Explanation: Given,

H0= 2.08 cm

H=1.92 cm

∆σ’=100kN/m^2

\(m_v=-\frac{∆H}{H_0}\frac{1}{∆σ’}\)

\(m_v=-\frac{0.154}{2.08} \frac{1}{100}=0.74 m^2/MN.\)

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