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A 225-mm sewer is to flow full at velocity of 0.75 m/s_ a) What are its maximum capacity and what minimum grade it should be laid if coefficient of roughness is 0.013. b) How many people it can serves if the Peak average per capita flow is 300 ipcd. Ignore infiltration ) How many additional people the sewer can cater if slope is doubled

A 225-mm sewer is to flow full at velocity of 0.75 m/s_ a) What are its maximum capacity and what minimum grade it should be laid if coefficient of roughness is 0.013. b) How many people it can serves if the Peak average per capita flow is 300 ipcd. Ignore infiltration ) How many additional people the sewer can cater if slope is doubled

Structural Analysis
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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Problem #1: A 225-mm sewer is to flow full at velocity of 0.75 m/s a) What are lits maximum capacity and what minimum grade it should be laid if coefficient of roughness is 0.013. b) How many people it can serves if the Peak average per capita flow is 300 lpcd. Ignore infiltration ) How many additional people the sewer can cater if slope is doubled
Transcribed Image Text:Problem #1: A 225-mm sewer is to flow full at velocity of 0.75 m/s a) What are lits maximum capacity and what minimum grade it should be laid if coefficient of roughness is 0.013. b) How many people it can serves if the Peak average per capita flow is 300 lpcd. Ignore infiltration ) How many additional people the sewer can cater if slope is doubled
Problem #2: A 700,000 m² watershed is 30 percent Agricultural and 70 % urban. The agricultural land is 40 % cultivated with conservation treatment, 35 % meadow in good condition, and 25 % forest land with good cover. The urban area is residential: 60 % on 1350 m² lots, 25 % on 1000 m² lots, and 15 % streets and roads with curbs and storm sewers. The soil group is B. Determine a composite CN and the total discharge from a 150 mm for 24- hour storm duration.
Transcribed Image Text:Problem #2: A 700,000 m² watershed is 30 percent Agricultural and 70 % urban. The agricultural land is 40 % cultivated with conservation treatment, 35 % meadow in good condition, and 25 % forest land with good cover. The urban area is residential: 60 % on 1350 m² lots, 25 % on 1000 m² lots, and 15 % streets and roads with curbs and storm sewers. The soil group is B. Determine a composite CN and the total discharge from a 150 mm for 24- hour storm duration.
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