Task 3a) Concern has been expressed at the local waste water treatment plant regarding theoverflows caused by storm water being passed down the same pipeline. The town areamain drain has to deal with a maximum of 100m³/s approximately twice a year and so it isproposed that a single drain pipe capable of taking this volume of water be collected fromthe main storm drains into a temporary storage reservoir to be channelled into the river.The maximum head available is 22m. The pipe is 2050m long, the Darcey Weisbachfigure is 0.011, what is the minimum pipe diameter for this project?b) Looking into the future with mean temperature levels exceeding 2.5°C above pre-industriallevels it is considered that the maximum size of the water drain pipe would increase by4m³/second every decade. Provide a table of expected maximum drain loads over aperiod from 2030 to 2130 and plot this on a graph. You are advised to plot the maximumexpected rainfall against pipe diameter.c) (i) Explain briefly how you would determine if the flow in a pipe was certain to be laminar(ii) Determine for each of the pipe sizes given as being suitable for the years 2023 to2123 and show whether the flow would definitely be laminar and if not, show whatminimum pipe size would be needed to ensure laminar flow and analyse the efficiency ofthe flow

a) Concern has been expressed at the local waste water treatment plant regarding the overflows caused by storm water being passed down the same pipeline. The town area main drain has to deal with a maximum of 100m³/s approximately twice a year and so it is proposed that a single drain pipe capable of taking this volume of water be collected from the main storm drains into a temporary storage reservoir to be channelled into the river. The maximum head available is 22m. The pipe is 2050m long, the Darcey Weisbach figure is 0.011, what is the minimum pipe diameter for this project?

a) Concern has been expressed at the local waste water treatment plant regarding the overflows caused by storm water being passed down the same pipeline. The town area main drain has to deal with a maximum of 100m³/s approximately twice a year and so it is proposed that a single drain pipe capable of taking this volume of water be collected from the main storm drains into a temporary storage reservoir to be channelled into the river. The maximum head available is 22m. The pipe is 2050m long, the Darcey Weisbach figure is 0.011, what is the minimum pipe diameter for this project?

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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Concept explainers

Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.

Question

Task 3
a) Concern has been expressed at the local waste water treatment plant regarding the
overflows caused by storm water being passed down the same pipeline. The town area
main drain has to deal with a maximum of 100m³/s approximately twice a year and so it is
proposed that a single drain pipe capable of taking this volume of water be collected from
the main storm drains into a temporary storage reservoir to be channelled into the river.
The maximum head available is 22m. The pipe is 2050m long, the Darcey Weisbach
figure is 0.011, what is the minimum pipe diameter for this project?
b) Looking into the future with mean temperature levels exceeding 2.5°C above pre-industrial
levels it is considered that the maximum size of the water drain pipe would increase by
4m³/second every decade. Provide a table of expected maximum drain loads over a
period from 2030 to 2130 and plot this on a graph. You are advised to plot the maximum
expected rainfall against pipe diameter.
c) (i) Explain briefly how you would determine if the flow in a pipe was certain to be laminar
(ii) Determine for each of the pipe sizes given as being suitable for the years 2023 to
2123 and show whether the flow would definitely be laminar and if not, show what
minimum pipe size would be needed to ensure laminar flow and analyse the efficiency of
the flow

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