GW Engineering EXAM I FALL 2010
PROBLEM #3
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25
NAME
points USE UNITS of METERS SECONDS and GRAMS
walls to the bottom
A 40 meter long by 36 meter wide man-made pond has impermeable steel
of the silt and ctay lining as illustrated in the cross-sectional view below.
The system is at a steadY state.
The regional water table is 23 meters below the pond surface'
WORK
ANSWER THE QUESTIONS ON THE FOLLOWING PAGE, SHOW YOUR
Pond water leveX is 1308 metenE
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GW Engineering EXAM I FALL 2010
pRovtDE GALCULATIONS AND ANSWERS TO PROBLEM 3 HERE
USE UNITS of METERS SECONDS and GRAMS
3a) What is the
volumetric discharge from the base of the pond?
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3c) using sea revet
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3d) What is the pressure at the same location thilt you calculated head for ir
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3e) lf we pumped the pond out and then allowed the silt and clay to drain completely, how
much water would drain from the silt and clay?
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