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Consider the following statements: 1. Secondary consolidation of soil follows Terzaghi’s one-dimensional theory of consolidation. 2. Consolidation is a function of total stress. 3. Even after complete dissipation of excess pore pressure, the soil undergoes a little more consolidation. Which of the above statements is/are correct?

Consider the following statements: 1. Secondary consolidation of soil follows Terzaghi’s one-dimensional theory of consolidation. 2. Consolidation is a function of total stress. 3. Even after complete dissipation of excess pore pressure, the soil undergoes a little more consolidation. Which of the above statements is/are correct? Correct Answer 3 only

Explanation:

Statement-I - False

Terzaghi’s one dimensional theory of consolidation is applicable for primary consolidation, in which expulsion of pore water is allowed from fully saturated soil sample under application of applied load and secondary consolidation is neglected.

Statement-II – False

As per, Terzaghi’s one dimensional theory of consolidation, primary  consolidation is a function of effective stress only and it is independent of total stress.

Statement-III – True

Even after complete dissipation of excess pore pressure, the soil undergoes a little more consolidation which is called secondary consolidation.

It occurs due to plastic readjustment of soil solids and it is independent of the applied pressure.

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