Geosynthetics used for the purpose of filtration must allow water to pass across the plane while
- AIncreasing the load-bearing capacity of the soil.
- BMelting at high temperatures to seal the soil.
- CActively pumping water to the surface.
- DPreventing the significant movement of soil particles.Correct
Solution
Concept
Geosynthetic Filtration Function
Formula
N/A
Step-by-step solution
1. Read the question regarding the primary function of geosynthetics in filtration applications. 2. Recall that filtration requires allowing liquid to pass through while retaining and preventing the movement of soil particles. 3. Compare with the given options and select Option (D) as the correct answer.
Explanation
In filtration, geosynthetics act like a sieve or filter. They allow water to flow through freely while holding back soil particles so they do not wash away or clog the drainage system.
Shortcut
To remember the filtration function of geosynthetics, use the rule "Pass Water, Hold Soil": - Pass Water: Allows water/liquid to flow freely across the plane. - Hold Soil: Prevents the significant movement of soil particles, keeping them in place.
Common mistake
A common mistake is selecting Option A by confusing the filtration function with the reinforcement function of geosynthetics, which specifically aims to increase the load-bearing capacity of soil. Another error is confusing active fluid movement or sealing mechanisms with the passive hydraulic function of filtration.
Correct answer: D) Preventing the significant movement of soil particles.