PRESENTATION INDIAN RAILWAY

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Presentation on Indian Railway Presented by- Sumeet jack .

Indian Railway:

Indian Railway

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History of Indian Railway First Indian Railway line was opened on 16 th April 1853.

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The first train consisting of one steam engine and four coaches , traversed a stretch of 21-miles between Mumbai(Bombay) and Thane. Indian Railway has a glorious past of more than150 years serving the nation.

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Features of Indian Railway Indian Railway has a 3 tier management system. No strike in last 30 years inspite of 17 lakhs workers. It runs 12000 trains everyday. It is largest railway system in World under one management system.

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It carries 1.4 crore passengers and 16 lakh tonnes of goods every day.

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It is fuel efficient system. 7000 stations & about 500 computerized passenger reservation system.

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Speed of Trains Shatabdi max 140kmph. Rajdhani max 130kmph. Others max 110kmph.

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Railway Track or Permanent Way Combination of rails, fitted on sleepers and resting on ballast and subgrade is called the railway track or permanent way.

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Requirements of an Ideal Permanent Way Both rails should be at the same level. Curves should be properly designed. Proper super elevation should be provided.

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Gauge The maximum distance between the running faces of the two rails of a permanent way is called GAUGE.

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Dimension of gauges 1-Broad Gauge(BG) 1676mm(5’6”) 2-Standard Gauge(SG) 1435mm 3-Metre Gauge(MG) 1000mm 4-Narrow Gauge(NG) 762mm(2’6”) 5-Light Gauge 610mm

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Types of Rails 1- Double Headed Rail. 2- Bull Headed Rail. 3- Flat Footed Rail.

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Rail Failure 1-Crushed Heads. 2-Square or Angular Breaks. 3-Split Heads. 4-Split Web. 5-Horizontal Fissures. 6-Transverse Fissure.

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Creep of Rails Creep is defined as the longitudinal movement of the rail with respect to the sleepers

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Defects of Creep (i) Sleepers move out of position thereby the rail gauge. (ii) Position of points and crossings are disturbed. (iii) Interlocking mechanism gets disturbed.

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Spikes For holding the rails to the wooden Sleepers various types of spikes are used.

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Types of spikes Dog spikes. Screw spikes. Round spikes. Standard spikes. Elastic spikes.

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Bolts Dog or hook bolt. Fish bolts. Fang nut bolts.

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Chairs Cast iron chair (C.I chairs). Slide chairs.

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Sleepers Sleepers are the transverse ties that are Laid to support the rails. They transmit wheel load from the rails to the ballast.

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Classification of sleepers Wooden sleeper Metal sleeper Cast iron sleeper Steel sleeper (iii) Concrete sleeper Reinforced concrete Sleeper (R.C.C) Prestressed Concrete Sleeper .

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Sleeper Density Sleeper density is the number of sleepers Per rail length. It is specified as(M+x) or (N+x), where M or N is the length of the rail in meters and x is a number varies to factors .

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Ballast Single size aggregate used in rail track construction. Generally has a nominal size of 63mm or 53mm. Can be used as a very coarse drainage material. Ballast Ballast

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Types of ballast Sand ballast. Moorum ballast. Coal ash or cinder. Broken stone ballast.

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Queries Please?