2. An artesian well is pumped at the rate of 25 liters/sec. at observation wells 170m and 340m away the drawdowns noted are 0.83m and 0.67m respectively. The average thickness of the aquifer at the observation wells is 6.5 meters. Compute the coefficient of permeability of the aquifer if the water level was 15 meters before pumping.

Structural Analysis
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Chapter2: Loads On Structures
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2. An artesian well is pumped at the rate of 25 liters/sec. at observation wells 170m and
340m away the drawdowns noted are 0.83m and 0.67m respectively. The average
thickness of the aquifer at the observation wells is 6.5 meters. Compute the coefficient of
permeability of the aquifer if the water level was 15 meters before pumping.
340 m
170 m
Q= 25 liters
normal hyd.
grade line
0.83
15m
h2
hi
impermeable
layer
t= 6,5 mm
Aquifer
Transcribed Image Text:2. An artesian well is pumped at the rate of 25 liters/sec. at observation wells 170m and 340m away the drawdowns noted are 0.83m and 0.67m respectively. The average thickness of the aquifer at the observation wells is 6.5 meters. Compute the coefficient of permeability of the aquifer if the water level was 15 meters before pumping. 340 m 170 m Q= 25 liters normal hyd. grade line 0.83 15m h2 hi impermeable layer t= 6,5 mm Aquifer
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