A permeability pumping test was carried out in a confined aquifer with the piezometric level before pumping is 2.18 m. below the ground surface. The aquiclude (impermeable layer) has a thickness of 5.7m. measured from the ground surface and the confined aquifer is 7.6 m. deep until it reaches the aquiclude (impermeable layer) at the bottom. At a steady pumping rate of 15.6 m3/hour the drawdown in the observation wells were respectively equal to 1.62 m. and 0.47 m. The distances of the observation wells from the center of the test well were 15 m. and 32 m. respectively.1.Compute the depth of water at the farthest observation well.2. Compute the coefficient of permeability.3. Compute the transmissibility of the impermeable layer. A permeability pumping test was carried out in a confined aquifer with the piezometric level beforepumping is 2.18 m. below the ground surface. The aquiclude (impermeable layer) has a thickness of 5.7m. measured from the ground surface and the confined aquifer is 7.6 m. deep until it reaches theaquiclude (impermeable layer) at the bottom. At a steady pumping rate of 15.6 m3/hour the drawdown inthe observation wells were respectively equal to 1.62 m. and 0.47 m. The distances of the observationwells from the center of the test well were 15 m. and 32 m. respectively.rj=32r2=15Piezometric level beofre mpumping| 2.18Draw downC0.471.625.7 mObservationwellsImpermeable layer(aquictude)hih2H=7.6 maquiferImpermeable layer(aquickude)

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Answered: A permeability pumping test was carried…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A permeability pumping test was carried out in a confined aquifer with the piezometric level before pumping is 2.18 m. below the ground surface. The aquiclude (impermeable layer) has a thickness of 5.7
m. measured from the ground surface and the confined aquifer is 7.6 m. deep until it reaches the aquiclude (impermeable layer) at the bottom. At a steady pumping rate of 15.6 m3/hour the drawdown in the observation wells were respectively equal to 1.62 m. and 0.47 m. The distances of the observation wells from the center of the test well were 15 m. and 32 m. respectively.

1.Compute the depth of water at the farthest observation well.

2. Compute the coefficient of permeability.

3. Compute the transmissibility of the impermeable layer.

A permeability pumping test was carried out in a confined aquifer with the piezometric level before
pumping is 2.18 m. below the ground surface. The aquiclude (impermeable layer) has a thickness of 5.7
m. measured from the ground surface and the confined aquifer is 7.6 m. deep until it reaches the
aquiclude (impermeable layer) at the bottom. At a steady pumping rate of 15.6 m3/hour the drawdown in
the observation wells were respectively equal to 1.62 m. and 0.47 m. The distances of the observation
wells from the center of the test well were 15 m. and 32 m. respectively.
rj=32
r2=15
Piezometric level beofre mpumping
| 2.18
Draw down
C0.47
1.62
5.7 m
Observation
wells
Impermeable layer
(aquictude)
hi
h2
H=7.6 m
aquifer
Impermeable layer
(aquickude)

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