A confined aquifer has an average thickness of 20 m. Two fully penetrating wells are used to monitor the water quality of the aquifer (see figure). Well A is pumped with a discharge of 1000 m3/day while well B is only used as an observation well. Pumping well A will result in water surface drop of 2 m. Well A diameter = 2 m, Well B diameter = 0.5 m, Distance between the two wells (center to center) = 500 m, Soil Porosity = 30%. Answer the following questions. WELL B WELL A 2 m - Flow 20 m Confined aquifer

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A confined aquifer has an average thickness of 20 m. Two fully penetrating wells are used to monitor the
water quality of the aquifer (see figure). Well A is pumped with a discharge of 1000 m3/day while well B is
only used as an observation well. Pumping well A will result in water surface drop of 2 m. Well A diameter
= 2 m, Well B diameter = 0.5 m, Distance between the two wells (center to center) = 500 m, Soil Porosity =
30%. Answer the following questions.
WELL B
WELL A
2 m
Flow
20 m
Confined aquifer
Transcribed Image Text:A confined aquifer has an average thickness of 20 m. Two fully penetrating wells are used to monitor the water quality of the aquifer (see figure). Well A is pumped with a discharge of 1000 m3/day while well B is only used as an observation well. Pumping well A will result in water surface drop of 2 m. Well A diameter = 2 m, Well B diameter = 0.5 m, Distance between the two wells (center to center) = 500 m, Soil Porosity = 30%. Answer the following questions. WELL B WELL A 2 m Flow 20 m Confined aquifer
Calculate Darcy's velocity in the aquifer.
a. qx = 50.00 m/d
O b. gx = 0.12 m/d
Oc. qx = 0.10 m/d
O d. gx = 5250.00 m/d
Transcribed Image Text:Calculate Darcy's velocity in the aquifer. a. qx = 50.00 m/d O b. gx = 0.12 m/d Oc. qx = 0.10 m/d O d. gx = 5250.00 m/d
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