The uplift pressure on a dam can be controlled by_________________?

Irrigation, Water Resources Engineering and Hydrology 29/08/2020

1) constructing cutoff under upstream face
2) constructing drainage channels bet-ween the dam and its foundation
3) by pressure grouting in foundation
The corret answer is?
A. only (1)
B. both (1) and (2)
C. both (1) and (3)
D. (1), (2) and (3)

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