In a gravity dam, a grout curtain is usually provided
- Anear the toe to reduce the exit gradient
- Bin the middle of the base to reduce seepage
- Cnear the heel to reduce uplift and seepageCorrect
- Dat the middle third of the base nearest to the toe to reduce the reaction pressure
Solution
Concept
Grout curtain location
Step-by-step solution
1. A grout curtain near the heel reduces seepage and uplift.
Explanation
It lengthens the path of seepage upstream.
Why the other options are wrong
Near the toe it increases exit gradient problems.
Shortcut
Heel curtain.
Correct answer: C) near the heel to reduce uplift and seepage