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When the primary consolidation process in a soil is complete , then
- a)The hydrostatic pressure will become zero
- b)The excess pore water pressure will be come zero
- c)Both the hydrostatic and excess pore water pressure will become zero
- d)The effective stress will become zero
Correct answer is option 'B'. Can you explain this answer?
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When the primary consolidation process in a soil is complete , thena)T...
Only excess pore pressure completely dissipates and effective stesses increase
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When the primary consolidation process in a soil is complete , thena)T...
Explanation:
Primary consolidation is a process in which the soil particles rearrange themselves under applied loads, resulting in a decrease in volume and an increase in density. During this process, the excess pore water pressure develops in the soil mass due to the inability of water to escape quickly from the soil. The excess pore water pressure decreases with time until it becomes zero, indicating the end of the primary consolidation process.
After the primary consolidation process is complete, the following changes occur in the soil:
- Hydrostatic pressure: The hydrostatic pressure is the pressure exerted by the water in the soil. During the primary consolidation process, the hydrostatic pressure increases due to the accumulation of water in the soil pores. However, after the process is complete, the hydrostatic pressure remains constant and does not become zero.
- Excess pore water pressure: The excess pore water pressure is the pressure exerted by the water in the soil pores above the hydrostatic pressure. During the primary consolidation process, the excess pore water pressure decreases with time until it becomes zero. This is because the water is able to escape from the soil pores due to the rearrangement of soil particles.
- Effective stress: The effective stress is the stress that is transmitted between the soil particles through the soil skeleton. During the primary consolidation process, the effective stress increases due to the rearrangement of soil particles and the decrease in volume. After the process is complete, the effective stress remains constant and does not become zero.
Therefore, the correct answer is option B, which states that the excess pore water pressure will become zero after the primary consolidation process is complete.
Primary consolidation is a process in which the soil particles rearrange themselves under applied loads, resulting in a decrease in volume and an increase in density. During this process, the excess pore water pressure develops in the soil mass due to the inability of water to escape quickly from the soil. The excess pore water pressure decreases with time until it becomes zero, indicating the end of the primary consolidation process.
After the primary consolidation process is complete, the following changes occur in the soil:
- Hydrostatic pressure: The hydrostatic pressure is the pressure exerted by the water in the soil. During the primary consolidation process, the hydrostatic pressure increases due to the accumulation of water in the soil pores. However, after the process is complete, the hydrostatic pressure remains constant and does not become zero.
- Excess pore water pressure: The excess pore water pressure is the pressure exerted by the water in the soil pores above the hydrostatic pressure. During the primary consolidation process, the excess pore water pressure decreases with time until it becomes zero. This is because the water is able to escape from the soil pores due to the rearrangement of soil particles.
- Effective stress: The effective stress is the stress that is transmitted between the soil particles through the soil skeleton. During the primary consolidation process, the effective stress increases due to the rearrangement of soil particles and the decrease in volume. After the process is complete, the effective stress remains constant and does not become zero.
Therefore, the correct answer is option B, which states that the excess pore water pressure will become zero after the primary consolidation process is complete.
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When the primary consolidation process in a soil is complete , thena)The hydrostatic pressure will become zerob)The excess pore water pressure will be come zeroc)Both thehydrostatic and excess pore water pressure will become zerod)The effective stress will become zeroCorrect answer is option 'B'. Can you explain this answer?
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