A permeability pumping test was carried out in a confined aquifer with the piezometric level before pumping is 2.15 m. below the ground surface. The aquiclude (impermeable layer) has a thickness of 5.73 m. measured from the ground surface and the confined aquifer is 7.3 m. deep until it reaches the aquiclude (impermeable layer) at the bottom. At a steady pumping rate of 14.7 m³/hour the drawdown in the observation wells. were respectively equal to 1.58 m. and 0.47 m. The distances of the observation wells from the center of the test well were 17 m. and 33 m. respectively. Compute the depth of water at the farthest observation well. Compute the transmissibility of the impermeable layer in cm²/sec.

A permeability pumping test was carried out in a confined aquifer with the piezometric level before pumping is 2.15 m. below the ground surface. The aquiclude (impermeable layer) has a thickness of 5.73 m. measured from the ground surface and the confined aquifer is 7.3 m. deep until it reaches the aquiclude (impermeable layer) at the bottom. At a steady pumping rate of 14.7 m³/hour the drawdown in the observation wells. were respectively equal to 1.58 m. and 0.47 m. The distances of the observation wells from the center of the test well were 17 m. and 33 m. respectively. Compute the depth of water at the farthest observation well. Compute the transmissibility of the impermeable layer in cm²/sec.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter6: Hydraulic Conductivity

Section: Chapter Questions

Problem 6.15P

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