Kerb overflow weirs – horizontal bars vs. vertical bars, Civil Engineering

Assignment Help:

Q. Kerb overflow weirs – horizontal bars vs. vertical bars?

Overflow weirs must be provided for steep roads (longitudinal gradient>5%), flat roads (longitudinal gradient<0.5%), sag points and blockage black spots. For steep roads the flow is rapid and overflow weirs must be provided to accommodate the excess flow. For flat roads, probability of accumulation of rubbish increases. So overflow weirs must be provided in these locations to avoid the stormwater flow just in case of blockage of gullies caused by trapping of rubbish.

Essentially kerb overflow weirs suffer from the disadvantage that it provides another passage for debris to enter the gullies and so bars (either vertical orhorizontal) must be provided to prevent the entry of debris into the weirs. For steep roads, as main concern is to provide an alternative route for excess flow, horizontal bars must be provided in this case to sustain better drainage efficiency. For flat roads, purpose of overflow weirs is to trap rubbish,so vertical bars must be provided since it is more effective in prevention of entry of debris.


Related Discussions:- Kerb overflow weirs – horizontal bars vs. vertical bars

What is a footing foundation for a water tower, A footing foundation for a ...

A footing foundation for a water tower carries a load of 9000 kN and is 3.6 metres square. It rests on dense sand of 9 m thickness overlying a clay layer of 3 metres depth. The cla

Define the term - post-tensioned concret, Define the term - post-tensioned ...

Define the term - post-tensioned concret In the Prescon and B.B.R.V. systems button heads are created at the ends of tendons. In the case of Prescon system, 2 to 130 tendon wir

Tools of measerments, where i can get the tools of different types of mease...

where i can get the tools of different types of measerments of differents elements of construction?

Systems approach to diagnose and solve the chronic w, systems approach to d...

systems approach to diagnose and solve the chronic water crisis in the city.

Show the stresses during pile driving, Q. Show the Stresses during pile dri...

Q. Show the Stresses during pile driving? Stresses during pile driving In pile driving operation, proper selection of piling hammers is necessary to prevent the damage of

Define lateral load - actions in pot bearings, Define Lateral Load - Action...

Define Lateral Load - Actions in POT Bearings? Lateral load is transferred from the piston to the POT by contact between the rim of the piston and the wall of the POT. The cont

What are the conditions essential for darcy law, What are the conditions es...

What are the conditions essential for Darcy's law to be applicable for flow of water by soil ? Why is the permeability of a clay soil with flocculated structure greater than tha

Construction, #questidisadvantage of steelon..

#questidisadvantage of steelon..

State different types of chlorination processes, Q. State different types o...

Q. State different types of chlorination processes available in Railway & market for disinfect ion of water. What type of chlorine used in the above different process. What do you

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd