In a drained triaxial test on a saturated clay, the main condition during shearing is that:
Correct answer: A. pore water is allowed to escape
- A. pore water is allowed to escape
- B. no volume change is permitted
- C. the specimen remains completely undrained
- D. only total stress is considered
Explanation
Drainage valves remain open in a drained test, allowing pore water to escape and permitting effective stress changes during shearing. The specimen may change volume, so constant volume is not a defining requirement.
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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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