2. A well with a diam. of 0.6 m. is constructed in a confined aquifer as shown. 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 rate 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 30 m. From these data, o Find the depth of water in the test well. . Calculate the permeability of the aquifer. O Compute the transmissibility of the impermeable layer. 71=30 A Ground surface 20 35 15m Water Level intestwel 72=10 Static water level observation wall impermeable confined aquifer hihi:

2. A well with a diam. of 0.6 m. is constructed in a confined aquifer as shown. 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 rate 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 30 m. From these data, o Find the depth of water in the test well. . Calculate the permeability of the aquifer. O Compute the transmissibility of the impermeable layer. 71=30 A Ground surface 20 35 15m Water Level intestwel 72=10 Static water level observation wall impermeable confined aquifer hihi:

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

2. A well with a diam. of 0.6 m. is constructed in a confined aquifer as shown. 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 rate 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 30 m. From these
data,
o Find the depth of water in the test well.
• Calculate the permeability of the aquifer.
O
Compute the transmissibility of the impermeable layer.
71-30
Ground
surface
20
15m
Water Leve
intern
72=10
Static water
level
observation
wall
-impermeable
confined aquifer
hi hr

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