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Discussion :: Soil Mechanics and Foundation Engineering

  1. If the coefficients of volume change and compressibility of a soil sample are respectively 6.75 x 10-2 and 3 x 10-2, the void ratio of the soil sample, is

    2. A.

    1.10
    B.

    1.15
    C.

    1.20
    D.
    1.25
    E.

    1.30

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    Answer : Option D

    Explanation :

    Coeff.compressibility = Coeff.volume change/(1 + e).

    (1 + e) = Coeff.volume change/Coeff.compressibility.

    e = (Coeff.volume change/Coeff.compressibility) - 1.

    e = ((6.75 x 10-2)/(3 x 10-2)) - 1.

    e = 2.25 - 1.

    e = 1.25.

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