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A sewer pipe of diameter 915 mm is to be laid on a slope of 0.027%, and the minimum flow rate expected upon installation is 15 L/s. The pipe Manning's roughness coefficient is estimated as 0.0102 when the pipe is full, and 0.0101 at minimum flow. Local regulations require a minimum permissible velocity of 0.60 m/s when the pipe is full to assure self- cleansing. The minimum tractive force required for self-cleansing is 0.9 Pa. Will the minimum permissible velocity criterion assure self-cleansing? Use y = 9790 N/m³.

A sewer pipe of diameter 915 mm is to be laid on a slope of 0.027%, and the minimum flow rate expected upon installation is 15 L/s. The pipe Manning's roughness coefficient is estimated as 0.0102 when the pipe is full, and 0.0101 at minimum flow. Local regulations require a minimum permissible velocity of 0.60 m/s when the pipe is full to assure self- cleansing. The minimum tractive force required for self-cleansing is 0.9 Pa. Will the minimum permissible velocity criterion assure self-cleansing? Use y = 9790 N/m³.

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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A sewer pipe of diameter 915 mm is to be laid on a slope of 0.027%, and the minimum flow rate expected upon installation is 15 L/s. The pipe Manning's roughness coefficient is estimated as 0.0102 when the pipe is full, and 0.0101 at minimum flow. Local regulations require a minimum permissible velocity of 0.60 m/s when the pipe is full to assure self- cleansing. The minimum tractive force required for self-cleansing is 0.9 Pa. Will the minimum permissible velocity criterion assure self-cleansing? Use y = 9790 N/m³. 2.
Transcribed Image Text:A sewer pipe of diameter 915 mm is to be laid on a slope of 0.027%, and the minimum flow rate expected upon installation is 15 L/s. The pipe Manning's roughness coefficient is estimated as 0.0102 when the pipe is full, and 0.0101 at minimum flow. Local regulations require a minimum permissible velocity of 0.60 m/s when the pipe is full to assure self- cleansing. The minimum tractive force required for self-cleansing is 0.9 Pa. Will the minimum permissible velocity criterion assure self-cleansing? Use y = 9790 N/m³. 2.
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