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If the time required for 50% consolidation of a remoulded sample of clay with single drainage is t, then the
time required to consolidate the same sample of clay with same degree of consolidation but with
double drainage is
time required to consolidate the same sample of clay with same degree of consolidation but with
double drainage is
- a)t/4
- b)t/2
- c)2t
- d)4t
Correct answer is option 'A'. Can you explain this answer?
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Consolidation of Remoulded Clay Sample
- Consolidation is the process by which a saturated soil gradually reduces in volume due to the expulsion of water from its voids under load.
- In a remoulded clay sample, the structure and fabric of the soil have been disrupted, and it behaves as a homogeneous material.
- The consolidation of a remoulded clay sample with single drainage occurs when water is allowed to escape only from one end of the specimen, resulting in a decrease in the void ratio.
- The time required for 50% consolidation of the remoulded clay sample with single drainage is denoted by t.
Consolidation of Same Clay Sample with Double Drainage
- Double drainage is a process in which water is allowed to escape from both ends of a soil specimen, resulting in a faster rate of consolidation.
- If the same remoulded clay sample is consolidated using double drainage, the time required for the same degree of consolidation (50%) will be less than t.
- The time required for 50% consolidation with double drainage is given by t/4, which is option A.
Explanation
- The rate of consolidation of a soil specimen depends on the permeability of the soil and the drainage conditions.
- In single drainage, water can only escape from one end of the specimen, resulting in a slower rate of consolidation.
- In double drainage, water can escape from both ends of the specimen, resulting in a faster rate of consolidation.
- The time required for 50% consolidation with double drainage is less than the time required for 50% consolidation with single drainage.
- The ratio of the time required for 50% consolidation with double drainage to the time required for 50% consolidation with single drainage is 1/4.
- Therefore, the time required for 50% consolidation of the same remoulded clay sample with double drainage is t/4, which is option A.
- Consolidation is the process by which a saturated soil gradually reduces in volume due to the expulsion of water from its voids under load.
- In a remoulded clay sample, the structure and fabric of the soil have been disrupted, and it behaves as a homogeneous material.
- The consolidation of a remoulded clay sample with single drainage occurs when water is allowed to escape only from one end of the specimen, resulting in a decrease in the void ratio.
- The time required for 50% consolidation of the remoulded clay sample with single drainage is denoted by t.
Consolidation of Same Clay Sample with Double Drainage
- Double drainage is a process in which water is allowed to escape from both ends of a soil specimen, resulting in a faster rate of consolidation.
- If the same remoulded clay sample is consolidated using double drainage, the time required for the same degree of consolidation (50%) will be less than t.
- The time required for 50% consolidation with double drainage is given by t/4, which is option A.
Explanation
- The rate of consolidation of a soil specimen depends on the permeability of the soil and the drainage conditions.
- In single drainage, water can only escape from one end of the specimen, resulting in a slower rate of consolidation.
- In double drainage, water can escape from both ends of the specimen, resulting in a faster rate of consolidation.
- The time required for 50% consolidation with double drainage is less than the time required for 50% consolidation with single drainage.
- The ratio of the time required for 50% consolidation with double drainage to the time required for 50% consolidation with single drainage is 1/4.
- Therefore, the time required for 50% consolidation of the same remoulded clay sample with double drainage is t/4, which is option A.
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If the time required for 50% consolidation of a remoulded sample of clay with single drainage is t, then thetime required to consolidate the same sample of clay with same degree of consolidation but withdouble drainage isa)t/4b)t/2c)2td)4tCorrect answer is option 'A'. Can you explain this answer?
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