What is the effect of over-consolidation on the compressibility of clay soils?

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Question: What is the effect of over-consolidation on the compressibility of clay soils?

Options:

Correct Answer: Decreases compressibility

Solution:

Over-consolidation decreases the compressibility of clay soils, making them less susceptible to further settlement.

What is the effect of over-consolidation on the compressibility of clay soils?

What is the effect of over-consolidation on the compressibility of clay soils?

Step 1: Understand what over-consolidation means. It refers to a condition where clay soil has been subjected to higher pressure in the past than it currently experiences.
Step 2: Recognize that compressibility is the ability of soil to decrease in volume under pressure.
Step 3: Realize that when clay soils are over-consolidated, they have already been compressed more than they are currently being loaded.
Step 4: Note that this previous compression makes the soil denser and less likely to compress further.
Step 5: Conclude that over-consolidation decreases the compressibility of clay soils, meaning they are less likely to settle or change volume under new loads.

No concepts available.