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Surname 1
Student’s Name
Institutional Affiliation
Course
Date Hydraulics and Hydrology Home Work
Question 1
A fully penetrating well in a 33 m thick confined aquifer pumps at a constant rate of 2000
m3/day for a long time. In two observation wells located 20 m and 160 m from the well, the
difference in hydraulic head is 2.0 m. If the undisturbed head is 250 m, and the head in the
furthest observation well is 249 m, calculate the radius of influence of the well.
b =33
S1 – S2 = 2m
Q = 2000m3/d
H = 250m
r1 = 20m
h2 = 249m
r2 = 160m
Q=
𝑘𝑏(𝑆1−𝑆2)
𝑅2
)
𝑅1
ln(
2000 =
𝑘(33𝑥2)
160
)
20
ln(
K = 63.01 m/day
Let radius of influence = Rw
Q=
𝑘𝑏(𝐻−ℎ2 )
𝑅𝑤
)
𝑟2
ln(
2000 =
63.01𝑥33(1)
𝑅𝑤
)
160
ln(
Rw = 452.4m
Question 2
A 10-...