Tunnels and laying of track, Mechanical Engineering

Assignment Help:

Tunnels:

Tunnels become unavoidable for negotiating hills, where detours are costly. The tunnels in rock are not lined, but those in loose strata require a lining of cement concrete. Drainage of water should be taken care of. Railway tunnels do not need to be lighted whereas road tunnels are invariably lighted.

Laying of Track

Laying of a railway track is also known as plate laying. It is the normal practice to lay the sleepers initially directly on the embankment and fix the rails to the sleepers, without placing the ballast. This is done so that the track can settle in the initial stages when the embankment is still in a loose state. Ballast is packed subsequently. The track already laid is used for transporting fresh track material on wagons.


Related Discussions:- Tunnels and laying of track

Resolving all of the forces normal to the inclined plane, Resolving all of ...

Resolving all of the forces normal to the inclined plane: A body weighing 500 N is resting on an inclined plane making an angle of 30 o with the horizontal. The coefficient o

Speed Limit Governors, Why is porter governor more sensitive than Watt Gove...

Why is porter governor more sensitive than Watt Governor even the former has got an additional weight which will require more force to move sleeve than Watt governor?

Refractory, extraction of refractories

extraction of refractories

Estimating time, estimating time of boring, turning,milling?

estimating time of boring, turning,milling?

Diploma.., Explain the point of contraflexure?

Explain the point of contraflexure?

Find out tension in the rop, Find out tension in the rop: Two blocks A...

Find out tension in the rop: Two blocks A and B are associated as shown in Figure (a). Mass of block A is 15 kg and this is resting on a surface having a coefficient of fricti

What are the basic components of an automobile, What are the basic componen...

What are the basic components of an automobile ? Explain them briefly. Show a schematic diagram showing the layout of the transmission system of a rear wheel driven automobile.

Resource management for project, Q. Resource Management for project? An...

Q. Resource Management for project? An important factor in overall project success is the provision of suitable and adequate resources. The initial estimate of engineering man

Solid modeling design, Solid Modeling Design Create a solid model for on...

Solid Modeling Design Create a solid model for one of the following case studies listed below (all subsystems/subassemblies are indicative): Use Solid Works CAD software. A- Ca

Calculate quantity of steam in the vessel - thermodynamics, Calculate quant...

Calculate quantity of steam in the vessel - thermodynamics: A closed metallic boiler drum having capacity of 0.24m 3 contains steam at pressure of 11bar and a temperature

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