* A well with a diameter of 0.6 m is constructed in a confined aquifer. The sand aquifer has a uniform thickness of 15 m, overlain by an impermeable layer with a depth of 35 m. A pumping test was conducted to determine the coefficient of permeability of the aquifer. The initial piezometric surface was 15 m. below the ground surface datum of the test well and observation wells. After water was pumped at a rated of 13 liters/sec for several days, water levels in the wells stabilized with the following drawdowns, 6.4 m in the test well, 3.7 m in the observation well 10 m from the test well, and 2.4 m in the second observation well at a distance of 30 m. From these data: o Find the depth of the water in the test well o Calculate the permeability of the aquifer.
* A well with a diameter of 0.6 m is constructed in a confined aquifer. The sand aquifer has a uniform thickness of 15 m, overlain by an impermeable layer with a depth of 35 m. A pumping test was conducted to determine the coefficient of permeability of the aquifer. The initial piezometric surface was 15 m. below the ground surface datum of the test well and observation wells. After water was pumped at a rated of 13 liters/sec for several days, water levels in the wells stabilized with the following drawdowns, 6.4 m in the test well, 3.7 m in the observation well 10 m from the test well, and 2.4 m in the second observation well at a distance of 30 m. From these data: o Find the depth of the water in the test well o Calculate the permeability of the aquifer.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Question 2
* A well with a diameter of 0.6 m is constructed in a confined aquifer. The sand aquifer has a uniform
thickness of 15 m, overlain by an impermeable layer with a depth of 35 m. A pumping test was conducted
to determine the coefficient of permeability of the aquifer. The initial piezometric surface was 15 m. below
the ground surface datum of the test well and observation wells. After water was pumped at a rated of
13 liters/sec for several days, water levels in the wells stabilized with the following drawdowns, 6.4 m in
the test well, 3.7 m in the observation well 10 m from the test well, and 2.4 m in the second observation
well at a distance of 30 m. From these data:
o Find the depth of the water in the test well
o Calculate the permeability of the aquifer.
![r]=30
r2=10
Ground
surface
Static water
level
draw.
down
curve,
20.
water level
intestwell
-observation
wall
hz hi .
35
impermeable
15m
confined aquifer](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F12a2a57d-781c-4f61-b1d8-31064535d5c8%2F8f5a92d3-d8b7-4af0-a295-74fc1677955b%2Fx5zmxmi_processed.jpeg&w=3840&q=75)
Transcribed Image Text:r]=30
r2=10
Ground
surface
Static water
level
draw.
down
curve,
20.
water level
intestwell
-observation
wall
hz hi .
35
impermeable
15m
confined aquifer
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