Rcc pipe culverts, Mechanical Engineering

Assignment Help:

RCC Pipe Culverts:

Reinforced cement concrete pipe culverts are ideal for dealing with small discharges. The advantages are :

(a) They are very economical, since a circular section is the most ideal for withstanding forces from all around.

(b) Since the pipes do not need very elaborate bedding, the cost further comes down.

(c) Pipe culverts do not demand structural design for individual cases. Pipes are standardised, in terms of mix, thickness and reinforcement.

(d) Pipes can be cast under strictly controlled conditions at a Central plant and thus their quality is assured.

The disadvantages with pipes are that they cannot be used for large openings. A minimum cover of at least half the diameter of the pipe is to be ensured over the pipes.

(a) Granular bedding (Figure), which consists of forming and grading the bed with sand or any granular material passing 4.75 mm sieve. The thickness of the bedding layer should be minimum 75 mm. Such bedding is suitable for fills upto 4 m height.

919_RCC Pipe Culverts.png

Figure: Granular Bedding for Pipe Culverts

(b) Concrete cradle bedding (Figure 7), which consists of a concrete bed of M-15 grade concrete. The thickness of the bedding layer should be minimum 250 mm. Such bedding is used for height of fills above 4 m.

1962_RCC Pipe Culverts1.png

Figure: Concrete Cradle Bedding for Pipe Culverts

Single pipe or a row of pipes can be used. The distance between pipes should be at least half the diameter of the pipe subject to a minimum of 450 mm. the pipes are kept sufficiently below the floor of the deepest bed. Pipe culverts are generally designed to flow full. Suitable head-walls are needed to protect the embankment fills. The slope of the floor is kept to a minimum of 1 : 1000.


Related Discussions:- Rcc pipe culverts

Cyclic service for vessels, Q. Cyclic Service for vessels? The required...

Q. Cyclic Service for vessels? The required service for all vessels shall include consideration of cyclic service. Batch operation vessels, for example, quite frequently fall i

Perform a beam analysis, You need to sketch shear force and bending moment ...

You need to sketch shear force and bending moment diagrams and estimate maximum bending and shear stresses acting on the beam using your knowledge in beam analysis.  Please note

What are interconnecting pipe racks, Q. What are Interconnecting pipe racks...

Q. What are Interconnecting pipe racks? Interconnecting pipe racks carry the main process inlet, export and transfer lines and utility distribution lines to and from process an

Define principal process for electron beam machining, Define Principal Proc...

Define Principal Process for Electron Beam Machining A beam of electrons is emitted from the electron gun which is basically following three points. 1. A cathode whic

Carbon and low alloy steels for welding, Q. Carbon and Low Alloy Steels for...

Q. Carbon and Low Alloy Steels for Welding? All welding of pressure retaining equipment must be completed as per the respective code, typically ANSI/ASME B31.1 or Section VIII

Relation for fin insulated tip and the heat dissipation, Derive the relatio...

Derive the relation for a fin insulated at the tip and the heat dissipation?

Air filter cleaning steps, Air Filter Cleaning :  Air filter filters the a...

Air Filter Cleaning :  Air filter filters the air, which enters into the carburetor. Then, this air mixes with fuel and this mixture enters into engine. If air is not clean, it wi

Determine a static feedforward controller, By operation of the distillation...

By operation of the distillation columns you are often interested to maintain output despite fluctuations in the composition, ex. feed composition and feed flow. One possible actua

Desirable characteristics of the piston , Desirable Characteristics of the ...

Desirable Characteristics of the Piston Silent in operation. Seizure between piston surface and inside of cylinder should not occur. Sufficiently resistant to co

Corrosion assessment for water disposal system, Q. Corrosion Assessment for...

Q. Corrosion Assessment for Water Disposal System? Due to the high salt contents and oxygen contamination, disposal water is highly corrosive to CS material. HCL line and in

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