(a) Calculate the minimum flow velocities in sewers A and B. (b) At what minimum height above the invert of sewer A should the invert of lateral B be located so that during
(a) Calculate the minimum flow velocities in sewers A and B. (b) At what minimum height above the invert of sewer A should the invert of lateral B be located so that during
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
the answer for a) sewer B is 0.90 m/s
b invert = 28 cm
show how
only HANDWRITTEN answer needed ( NOT TYPED)

Transcribed Image Text:14.3 The maximum flow reaching sewer A before the man-
hole is 850 L/s and lateral B 150 L/s (see Fig. 14.23). If the min-
imum flow is one-third of the maximum:
(a) Calculate the minimum flow velocities in sewers A
and B.
(b) At what minimum height above the invert of sewer A
should the invert of lateral B be located so that during
For all sewers n - 0.013
Sewer B
d = 450 mm
S $= 0.5%
MH
Main sewer A
do 750 mm
S 1%
Valley
Inverted
siphon
Figure 14.23 Layout of Sanitary Sewers for Problem 14.3.
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