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

Oil gun-tool and equipment , Oil Gun: This is used to supply fluid oil to ...

Oil Gun: This is used to supply fluid oil to chassis lubrication (Figure). Figure : Oil Gun

Idle circuit of motorcycle, Idle Circuit : During Idling while the th...

Idle Circuit : During Idling while the throttle valve is almost closed the vacuum is very high at Venturi area and no air-fuel mixture is drawn through the main circuit, as t

Determine the speeds of gears, In a sun and planet type gear, the annular g...

In a sun and planet type gear, the annular gear (D) has 100 internal teeth, the sun gear (A) has 50 external teeth and a planet gear (B) has 25 external teeth. The gear (B) meshes

The aligned dimension command, The Aligned Dimension Command You can us...

The Aligned Dimension Command You can use this command to generate aligned dimensions. These are dimensions along inclined lines which cannot be dimensioned with the DIMLINEAR

What are the alluvial sediments, What are the Alluvial sediments Alluvi...

What are the Alluvial sediments Alluvial sediments are characterized by stratification or layering and fine grained soil layers have higher compressibility as compared to coars

Break even analysis, Break even analysis: The costs from Shagun Palace...

Break even analysis: The costs from Shagun Palace, a continental restaurant, are shown below. Fixed costs are Rs. 50,000 per month. Break even analysis is applied as a

Types of bridges, Types of Bridges and their Suitability: Bridging is ...

Types of Bridges and their Suitability: Bridging is a specialized filed of engineering science. It has very high degree of sill and expertise in this field, gathered from brid

Gas flow rates, Gas Flow Rates Shielding gas flow requirements are ba...

Gas Flow Rates Shielding gas flow requirements are based on cup & nozzle size, weld pool size & air movement . Generally, the flow rate increases in proportion to the cross s

Define rack cutter generating process, Define Rack Cutter Generating Proces...

Define Rack Cutter Generating Process? The rack cutter generating process is also called shaping process. In this method, the generating cutter has the foam of basic rack for t

Combustion , How do i calculate the flame radius and flame speed if unstret...

How do i calculate the flame radius and flame speed if unstretched flame speed=2.8m/sec and markstein length=5 mm. ?

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