In a consolidated drained triaxial test, drainage is permitted:
Correct answer: A. During both consolidation and shearing
- A. During both consolidation and shearing
- B. Only during specimen saturation
- C. Only after the specimen reaches failure
- D. During neither consolidation nor shearing
Explanation
In a consolidated drained test, water is allowed to drain during consolidation and throughout shearing. This permits excess pore pressure to remain approximately zero during the shearing stage.
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About Soil Mechanics and Foundations
Soil mechanics examines index properties, phase relationships, classification, permeability, seepage, compaction, consolidation, shear strength and earth pressure. Foundations apply these principles to bearing capacity, settlement and shallow or deep foundation selection, with clear distinction between compaction, which expels air, and consolidation, which expels water over time.
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