What is the effect of soil permeability on settlement?

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Q: What is the effect of soil permeability on settlement?

Solution: Higher permeability allows for quicker dissipation of pore water pressure, leading to faster consolidation and thus faster settlement.

Steps: 7

Step 1: Understand what soil permeability means. It refers to how easily water can flow through the soil.
Step 2: Know that when soil is saturated (full of water), it can create pressure in the spaces between soil particles, called pore water pressure.
Step 3: Realize that if the soil has high permeability, water can escape quickly from the soil.
Step 4: When water escapes quickly, the pore water pressure decreases faster.
Step 5: As the pore water pressure decreases, the soil particles can settle closer together, which is called consolidation.
Step 6: Faster consolidation means that the ground will settle more quickly.
Step 7: Therefore, higher soil permeability leads to quicker settlement of the ground.