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 me 7= 6m Impermeable stratum -=3 m h, = 2.7 m h = 2.1 m Confined aquifer H, = 4 m Impermeable

Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Braja M. Das, Khaled Sobhan
Chapter7: Permeability
Section: Chapter Questions
Problem 7.22P: Refer to Figure 7.24. The following data were collected during the field permeability measurement of...
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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
Ap-
Ime
Test well
1, = 6 m
Impermeable stratum
, = 3 m
hz = 2.7 m
h, = 2.1 m
Confined aquifer
Ho = 4 m
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. (
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 Ap- Ime Test well 1, = 6 m Impermeable stratum , = 3 m hz = 2.7 m h, = 2.1 m Confined aquifer Ho = 4 m 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. (
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