Thank you for visiting A permeability test is conducted on a soil with a length of 250 mm and diameter of 25 mm Under constant head of 65 cm. This page is designed to guide you through key points and clear explanations related to the topic at hand. We aim to make your learning experience smooth, insightful, and informative. Dive in and discover the answers you're looking for!
Answer :
The permeability of the soil is 39.5 cm/hr.
Given parameters are:
length of the soil, l = 250 mm
diameter of the soil, D = 25 mm
time taken to collect water, t = 110 seconds
head of water, h = 65 cm
Mass of water collected, m = 14 grams
Formula used:
q = (2.303 * V * h) / t
where
q = discharge of water in cm3/s
V = Volume of the soil in cm3
t = time taken to collect the water in s.
h = head of the water in cm
Now, let's find the volume of the soil,
V = (π/4) * D² * l
v = (3.14/4) * (25)² * 250
v = 153125 cm³.
Put these values in the formula to find q
q = (2.303 * V * h) / t
q = (2.303 * 153125 * 65) / 110
q = 8519.7 cm³/s
Convert the value of q into cm/hr
q = q * 3600 / 1000
q = 8519.7 * 3600 / 1000
q = 30670.92 cm/hr
Therefore, the permeability of the soil is 39.5 cm/hr.
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