Computer · Water Resources and Dam Engineering
The uplift pressure at the design location of a drainage gallery in a gravity dam, according to U.S.B.R. recommendations, is taken as equal to:
- 1two-fifth of the hydrostatic pressure at the toe
- 2the average of hydrostatic pressures at the toe and heel
- 3the hydrostatic pressure at the heel, plus one-fifth of the difference of the hydrostatic pressure at the heel and toe
- 4the hydrostatic pressure at the toe, plus one-third of the difference of the hydrostatic pressure at the heel and toe✓
Correct answer
the hydrostatic pressure at the toe, plus one-third of the difference of the hydrostatic pressure at the heel and toe
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