hree soil samples in a permeameter overlie one anoth Layer Hydraulic Conductivity, ft/day Length of aqui 1 10 0.20 5 3 0.030 12

Structural Analysis
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Chapter2: Loads On Structures
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Three soil samples in a permeameter overlie one another with their characteristics listed below.
Layer Hydraulic Conductivity, ft/day Length of aquifer, ft
1
10
5
2
0.20
3
0.030
12
a. Determine the equivalent hydraulic conductivity, in ft/day, if the flow is perpendicular to
the stratification.
b. If a falling head test is used, calculate the time required, in seconds, for the head to drop
from
65
to
54
ft. The cross-sectional area of the permeameter and the
standpipe are 300 square feet and 30 square feet respectively.
Transcribed Image Text:Three soil samples in a permeameter overlie one another with their characteristics listed below. Layer Hydraulic Conductivity, ft/day Length of aquifer, ft 1 10 5 2 0.20 3 0.030 12 a. Determine the equivalent hydraulic conductivity, in ft/day, if the flow is perpendicular to the stratification. b. If a falling head test is used, calculate the time required, in seconds, for the head to drop from 65 to 54 ft. The cross-sectional area of the permeameter and the standpipe are 300 square feet and 30 square feet respectively.
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