3. Compression of Fine Grained Soil
Fine-grained soils exhibit varying compressibility based on their void ratio and effective stress. Experimental analysis reveals distinct behavior during loading and unloading phases, highlighting virgin compression paths and elastic recovery processes. Understanding these behaviors is critical for predicting soil performance in engineering applications.
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What we have learnt
- Fine-grained soils compress in different manners based on void ratio and effective stress.
- The virgin compression line is crucial for determining normal consolidation behavior.
- Soil samples exhibit elastic recovery and permanent strain during loading and unloading cycles.
Key Concepts
- -- Void Ratio
- The ratio of the volume of voids to the volume of solids in a soil sample.
- -- Effective Stress
- The stress that contributes to the interparticle forces in soil, affecting its strength and settlement.
- -- Normal Consolidation Line
- The curve that represents the relationship between void ratio and effective stress during virgin compression.
- -- Hysteresis Loop
- The difference in paths taken during loading and unloading in soil compression tests.
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