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Question
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?
A.
3 only
B.
1 and 2 only
C.
2 and 3 only
D.
1 only
Answer ( Option A)

3 only

Solution

1. Terzaghi's one dimensional theory of consolidation assumes a unique relationship, independent of time, between void ratio and effective stress (i.e., secondary consolidation is neglected).
2. Consolidation is a function of effective stress.
3. Even after complete dissipation of excess pore pressure, the soil undergoes a little more consolidation which is called secondary consolidation.

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