out the peak flow rate to be used in sizing pipe 1 late the peak flow rate to be used in sizing pipe 2
out the peak flow rate to be used in sizing pipe 1 late the peak flow rate to be used in sizing pipe 2
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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QUESTION 2
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Transcribed Image Text:QUESTION 2
A proposed storm drain system consisting of two inlets and two pipes is shown in
Figure 1. Assume a return period of 20 years for the entire catchment.
a. Work out the peak flow rate to be used in sizing pipe 1
b. Calculate the peak flow rate to be used in sizing pipe 2
Area A
A = 1.5 km2
C = 0.35
te = 14 min
Area C
A = 2.1 km2
C = 0.55
te = 10 min
Area B
A = 1.8 km2
C = 0.43
tc = 10 min
Pipe 1
Travel time = 2 min
Pipe 2
Figure 1 (Q2)
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