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Question

Consider the following statements:
1. Pore pressure parameter A is a constant for a soil.
2. The shear strength of soil is a function of the effective stress in the soil and not of the total stress in the soil.
Which of these statements is/are correct?

A
1 Only
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B
2 Only
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C
Both 1 and 2
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D
Nether 1 nor 2
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Solution

The correct option is B 2 Only
Pore water parameters are empirical coefficients which are used to express the response of pore pressure to changes in total stress under undrained conditions. Pore pressure parameter A is not a constant and is different for different soils and stress conditions. For a given soil, A depends upon the strain, anisotropy, sample disturbance and the over consolidation ratio.

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