You are required to design a sewerage network for the small section of a proposed city shown inthe figure above. The map shows the contour lines, the map scale, proposed blocks. Thenumbers on the different blocks indicates the number of residences. Given that the self cleansingvelocity is 0.75 m/s.a) Identify the highest and lowest parts.b) Suggest the locations of the manholes needed and its elevation.c) Identify the different sewers and calculate the slope, length, slope of each.4) Determine the design flow for each sewer assuming the average family size is 5.3 persons, andthe average infiltration rate is 100 Liter per donum. Assume that the maximum flow is 2.25 timesthe average, the minimum flow is two thirds the average flow rate, and the average wastewatergenerated is 120 L/c-d).5) Design (estimate D) the sewers using the tables presented in class except for the trunk sewer(show complete design details). 6.2 : 2620121212121212630m63 m64012122121212640m6.662,6, 12 - number of residences along each block650 m100 mYou are required to design a sewerage network for the small section of a proposed city shown inthe figure above. The map shows the contour lines, the map scale, proposed blocks. Thenumbers on the different blocks indicates the number of residences. Given that the self cleansingvelocity is 0.75 m/s.a) Identify the highest and lowest parts.b) Suggest the locations of the manholes needed and its elevation.c) Identify the different sewers and calculate the slope, length, slope of each.4) Determine the design flow for each sewer assuming the average family size is 5.3 persons, andthe average infiltration rate is 100 Liter per donum. Assume that the maximum flow is 2.25 timesthe average, the minimum flow is two thirds the average flow rate, and the average wastewatergenerated is 120 L/c-d).5) Design (estimate D) the sewers using the tables presented in class except for the trunk sewer(show complete design details).6.

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Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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You are required to design a sewerage network for the small section of a proposed city shown in the figure above. The map shows the contour lines, the map scale, proposed blocks. The numbers on the different blocks indicates the number of residences. Given that the self cleansing velocity is 0.75 m/s. a) Identify the highest and lowest parts. b) Suggest the locations of the manholes needed and its elevation. c) Identify the different sewers and calculate the slope, length, slope of each. 4) Determine the design flow for each sewer assuming the average family size is 5.3 persons, and the average infiltration rate is 100 Liter per donum. Assume that the maximum flow is 2.25 times the average, the minimum flow is two thirds the average flow rate, and the average wastewater generated is 120 L/c-d). 5) Design (estimate D) the sewers using the tables presented in class except for the trunk sewer (show complete design details).

6.
2 : 2
620
12
12
12
12
12
12
630m
63 m
640
12
12
2
12
12
12
640m
6.
6
6
2,6, 12 - number of residences along each block
650 m
100 m
You are required to design a sewerage network for the small section of a proposed city shown in
the figure above. The map shows the contour lines, the map scale, proposed blocks. The
numbers on the different blocks indicates the number of residences. Given that the self cleansing
velocity is 0.75 m/s.
a) Identify the highest and lowest parts.
b) Suggest the locations of the manholes needed and its elevation.
c) Identify the different sewers and calculate the slope, length, slope of each.
4) Determine the design flow for each sewer assuming the average family size is 5.3 persons, and
the average infiltration rate is 100 Liter per donum. Assume that the maximum flow is 2.25 times
the average, the minimum flow is two thirds the average flow rate, and the average wastewater
generated is 120 L/c-d).
5) Design (estimate D) the sewers using the tables presented in class except for the trunk sewer
(show complete design details).
6.

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