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What does the term 'effective stress' refer to in soil mechanics?
What does the term 'effective stress' refer to in soil mechanics?
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Practice Questions
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What does the term 'effective stress' refer to in soil mechanics?
Total stress minus pore water pressure
Pore water pressure minus total stress
Soil weight divided by volume
Soil density multiplied by gravity
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Effective stress is defined as the total stress acting on a soil mass minus the pore water pressure within the soil.
Questions & Step-by-step Solutions
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Q
Q: What does the term 'effective stress' refer to in soil mechanics?
Solution:
Effective stress is defined as the total stress acting on a soil mass minus the pore water pressure within the soil.
Steps: 5
Show Steps
Step 1: Understand that soil is made up of solid particles and water.
Step 2: Recognize that when weight is applied to soil, it creates total stress.
Step 3: Know that pore water pressure is the pressure of water in the spaces between soil particles.
Step 4: Realize that effective stress is what actually holds the soil particles together and supports loads.
Step 5: Calculate effective stress by subtracting the pore water pressure from the total stress.
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