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The ultimate consolidation settlement of a structure resting on a soil
- a)Decreases with the increase in the initial void ratio
- b)Decreases with the decrease in the plastic limit
- c)Increases with the increase in the initial void ratio
- d)Increases with the decrease in the porosity of the soil
Correct answer is option 'A'. Can you explain this answer?
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The ultimate consolidation settlement of a structure resting on a soil...
ultimate consolidation settlement is given by,
so as initial void ration e0 , increase ultimate settlement decrease.
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The ultimate consolidation settlement of a structure resting on a soil...
Consolidation Settlement of a Structure Resting on Soil
Consolidation settlement refers to the gradual and time-dependent settlement of a structure resting on soil due to the expulsion of water from the soil layers. It occurs when a structure is constructed on a compressible soil layer that is subjected to an increase in load.
Factors Affecting Consolidation Settlement
There are several factors that influence the consolidation settlement of a structure. These include:
1. Initial Void Ratio: The initial void ratio is the ratio of the volume of voids to the total volume of soil. It represents the degree of compaction of the soil before any load is applied.
2. Plastic Limit: The plastic limit is the moisture content at which a soil changes from a plastic state to a semi-solid state. It determines the ease with which the soil can be deformed.
3. Porosity: Porosity is the ratio of the volume of voids to the total volume of soil. It represents the amount of void space within the soil.
Relationship between Consolidation Settlement and Initial Void Ratio
The ultimate consolidation settlement of a structure resting on soil decreases with an increase in the initial void ratio. This means that as the initial void ratio increases, the consolidation settlement decreases.
Explanation
When a load is applied to a soil layer, the water in the void spaces is gradually expelled from the soil due to the applied load. This expulsion of water causes the soil particles to rearrange themselves, resulting in settlement.
If the initial void ratio is high, it means that the soil is loosely packed and contains more void spaces. As the load is applied, the water in these void spaces is expelled more easily, allowing the soil particles to rearrange themselves and settle more quickly. This results in a lower consolidation settlement.
On the other hand, if the initial void ratio is low, it means that the soil is densely packed and contains fewer void spaces. In this case, the water in the void spaces is expelled less easily, causing the soil particles to rearrange themselves and settle more slowly. This leads to a higher consolidation settlement.
Therefore, the ultimate consolidation settlement of a structure resting on soil decreases with an increase in the initial void ratio.
Consolidation settlement refers to the gradual and time-dependent settlement of a structure resting on soil due to the expulsion of water from the soil layers. It occurs when a structure is constructed on a compressible soil layer that is subjected to an increase in load.
Factors Affecting Consolidation Settlement
There are several factors that influence the consolidation settlement of a structure. These include:
1. Initial Void Ratio: The initial void ratio is the ratio of the volume of voids to the total volume of soil. It represents the degree of compaction of the soil before any load is applied.
2. Plastic Limit: The plastic limit is the moisture content at which a soil changes from a plastic state to a semi-solid state. It determines the ease with which the soil can be deformed.
3. Porosity: Porosity is the ratio of the volume of voids to the total volume of soil. It represents the amount of void space within the soil.
Relationship between Consolidation Settlement and Initial Void Ratio
The ultimate consolidation settlement of a structure resting on soil decreases with an increase in the initial void ratio. This means that as the initial void ratio increases, the consolidation settlement decreases.
Explanation
When a load is applied to a soil layer, the water in the void spaces is gradually expelled from the soil due to the applied load. This expulsion of water causes the soil particles to rearrange themselves, resulting in settlement.
If the initial void ratio is high, it means that the soil is loosely packed and contains more void spaces. As the load is applied, the water in these void spaces is expelled more easily, allowing the soil particles to rearrange themselves and settle more quickly. This results in a lower consolidation settlement.
On the other hand, if the initial void ratio is low, it means that the soil is densely packed and contains fewer void spaces. In this case, the water in the void spaces is expelled less easily, causing the soil particles to rearrange themselves and settle more slowly. This leads to a higher consolidation settlement.
Therefore, the ultimate consolidation settlement of a structure resting on soil decreases with an increase in the initial void ratio.
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The ultimate consolidation settlement of a structure resting on a soila)Decreases with the increase in the initial void ratiob)Decreases with the decrease in the plastic limitc)Increases with the increase in the initial void ratiod)Increases with the decrease in the porosity of the soilCorrect answer is option 'A'. Can you explain this answer?
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