Spacing of manholes in straight sections, Civil Engineering

Assignment Help:

Question

Spacing of manholes in straight sections for diverse pipe sizes is stated in Storm water Drainage Manual. How are figures arrived on?

Answer

For pipe size is less than 300mm, rodding is typically adopted in which workers place about 1m long rods during pipes to location of blockage and physically operate the rod to clear blockage.

For pipe size is less than 700mm, water-jetting is generally working in which water is supplied from nearby fire hydrants and pressurized water jet is used for clearing obstacle.Winching scheme is adopted for every size of pipes.

For example, for pipe size more than 1050mm, it is stated in Storm water Drainage Manual that utmost intervals between manholes length of straight lengths should be 120m. This is as for sizes over 1050m; main method of pipe maintenance is by winching whose utmost length of operation is 120m. Likewise, highest intervals of manholes for other directly pipes are derived from their corresponding protection processes.


Related Discussions:- Spacing of manholes in straight sections

What is an ice dam sock, If you have never used an ice dam melting sock on ...

If you have never used an ice dam melting sock on your roof before, you will search that they give an inexpensive method for removing roof ice dams and improving your home's heatin

Water control for sheet pile walls, Q. Water control for sheet pile walls? ...

Q. Water control for sheet pile walls? Ground water flow into excavations constructed by sheet pile walls must be minimized in order to save the cost of the provision of pumpin

Draw the shape of the pressure line, Draw the shape of the Pressure line. ...

Draw the shape of the Pressure line. Solution The locations of resultant force at sections A-A, B-B  and C-C have already been determined. Joining these locations, we can dr

What is stilling basins, Q. What is Stilling basins? Stilling basins ar...

Q. What is Stilling basins? Stilling basins are usually introduced to convert supercritical flow to subcritical flow before it reaches downstream. A typical stilling basin comp

Distomat, Feactures and uses of distomat

Feactures and uses of distomat

Define the pump and motor efficiencies - hydrolic system, Define the Pump a...

Define the Pump and Motor Efficiencies Equations account for the loss of power, primarily due to mechanical friction as a result of rotating components in the pump and motor.

Define the term - prestressing force, Define the term - prestressing force ...

Define the term - prestressing force It should be realized that the maximum amount of prestressing force which can be  transferred from tendons to concrete depends on the bond

Remedial measures for problems in turbid water - absorption, Define Remedia...

Define Remedial measures for Problems in Turbid Water - Absorption? The process of absorption of light can be overcome by using higher powered lighting, or by using more light

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