e drawdown in the observation wells on wells from the center of the test we
e drawdown in the observation wells on wells from the center of the test we
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
![A permeability pumping test was carried out in a confined aquifer with the piezometric level before pumping of
2.18m below the ground surface. The aquiclude has a thickness of 5.7m measured from the ground surface and
confined aquifer is 7.6m deep until it reaches the aquiclude at the bottom. At a steady state pumping rate of 15.6
m³ /hr the drawdown in the observation wells were respectively equal to 1.62m and 0.47m. The distances of the
observation wells from the center of the test well were 15m and 32m respectively. The radius of the test well is 1m.
14. Determine the coefficient of permeability (m/hr)
b. 0.597
15. Determine the transmisibity of the impermeable (m²/hr)
0.215
2.15x10-5
d. 5.97 x10-5
a.
C.
а.
1.636
b. 4.544
C.
0.00016
d. 0.00045
16. Determine the drawdown in the test well (m)
a.
5.730
b. 3.765
C.
4.124
d. 4.364](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F46f89c99-4b9a-44d0-8050-af1839e672c0%2F2b4a1214-f666-4c32-87b7-ac8dda859bca%2F77b8eod_processed.png&w=3840&q=75)
Transcribed Image Text:A permeability pumping test was carried out in a confined aquifer with the piezometric level before pumping of
2.18m below the ground surface. The aquiclude has a thickness of 5.7m measured from the ground surface and
confined aquifer is 7.6m deep until it reaches the aquiclude at the bottom. At a steady state pumping rate of 15.6
m³ /hr the drawdown in the observation wells were respectively equal to 1.62m and 0.47m. The distances of the
observation wells from the center of the test well were 15m and 32m respectively. The radius of the test well is 1m.
14. Determine the coefficient of permeability (m/hr)
b. 0.597
15. Determine the transmisibity of the impermeable (m²/hr)
0.215
2.15x10-5
d. 5.97 x10-5
a.
C.
а.
1.636
b. 4.544
C.
0.00016
d. 0.00045
16. Determine the drawdown in the test well (m)
a.
5.730
b. 3.765
C.
4.124
d. 4.364
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