A field pumping test was conducted from an aquifer of sandy soil of 4 m thickness confined between two impervious strata. When equilibrium was established, 90 liters of water was pumped Observation wells Test well 7₂ 6m- Impermeable stratum ILL Ho=4 m r₁=3m h₁ = 2.1 m Confined aquifer Impermeable J h₂=2.7 m

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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A field pumping test was conducted from an aquifer of sandy soil of 4 m thickness confined
between two impervious strata. When equilibrium was established, 90 liters of water was pumped
Observation wells
Test well
₂=6m.
Impermeable stratum
h₂=2.7 m
Ho = 4 m
Confined aquifer
Impermeable
out per hour. The water elevation in an observation well 3.0 m away from the test well was 2.1 m
and another 6.0 m away was 2.7 m from the roof level of the impervious stratum of the aquifer. Find
the value of k of the soil in m/sec. (
-r₁=3m
T
h₁ = 2.1 m
LLL
Transcribed Image Text:A field pumping test was conducted from an aquifer of sandy soil of 4 m thickness confined between two impervious strata. When equilibrium was established, 90 liters of water was pumped Observation wells Test well ₂=6m. Impermeable stratum h₂=2.7 m Ho = 4 m Confined aquifer Impermeable out per hour. The water elevation in an observation well 3.0 m away from the test well was 2.1 m and another 6.0 m away was 2.7 m from the roof level of the impervious stratum of the aquifer. Find the value of k of the soil in m/sec. ( -r₁=3m T h₁ = 2.1 m LLL
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