A permeability pumping test was carried out in a confined aquifer with the piezometric level before pumping is 2.5m below the ground surface. The aquiclude (Impermeable layer) has a thickness of 5.7m measured from the ground surface and the confined aquifer is 7.6m deep until it reaches the aquiclude (impermeable layer) at the bottom. At a steady pumping rate. of 15.6m the drawdown in the observation well were hr respectively equal to 1.62m and 0.47m. The distance of the observation wells from the center of the test well are 20m and 35m respectively. a.) Compute the depth of water at the farthest observation well b.) Compute the coefficient of permeability in m/s

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Subject: Geotechnical engineering - soil mechanics 

 

A permeability pumping test was carried out in a confined
aquifer with the piezometric level before pumping is 2.5m
below the ground surface. The aquiclude (Impermeable layer)
has a thickness of 5.7m measured from the ground surface and
the confined aquifer is 7.6m deep until it reaches the aquiclude
(impermeable layer) at the bottom. At a steady pumping rate.
of 15.6 the drawdown in the observation well were
respectively equal to 1.62m and 0.47m. The distance of the
observation wells from the center of the test well are 20m and
35m respectively.
a.) Compute the depth of water at the farthest observation
well
b.) Compute the coefficient of permeability in m/s
Transcribed Image Text:A permeability pumping test was carried out in a confined aquifer with the piezometric level before pumping is 2.5m below the ground surface. The aquiclude (Impermeable layer) has a thickness of 5.7m measured from the ground surface and the confined aquifer is 7.6m deep until it reaches the aquiclude (impermeable layer) at the bottom. At a steady pumping rate. of 15.6 the drawdown in the observation well were respectively equal to 1.62m and 0.47m. The distance of the observation wells from the center of the test well are 20m and 35m respectively. a.) Compute the depth of water at the farthest observation well b.) Compute the coefficient of permeability in m/s
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