13 Equipments in Railway Stations and Yards (Railway Engineering Lectures هندسة السكك الحديدية & Dr. Walied A. Elsaigh)
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The document discusses various types of railway engineering equipment used in railway stations and yards, categorizing them based on their purposes such as passenger convenience, locomotives, and goods services. It details different types of cranes, weigh bridges, loading gauges, and safety devices crucial for efficient railway operations. The document also outlines specific tools and structures for maintaining locomotives and ensuring safety in train traffic movements.
13 Equipments in Railway Stations and Yards (Railway Engineering Lectures هندسة السكك الحديدية & Dr. Walied A. Elsaigh)
- 1. Dr. Walied A. Elsaigh [email protected] Asst. Prof. of Civil Engineering Rajab 1437H CE 435 Railway Engineering Equipments in Railway Stations & Yards
- 2. Textbook
- 3. Introduction Equipments required at rail yards and stations can be grouped with respect to the purpose (job they serve): Equipment for the convenience of passengers in a passenger station Equipment for the locomotives in loco-yard Equipment for good services in a good yard public telephones, foot bridge and sub-ways Equipment for the safety of train traffic movements Equipment for miscellaneous purposes cranes, weigh-bridge, loading gauge / ramps etc Engine sheds, water column, and triangle etc Scotch block, derailing switch and signals etc Refrigerators, TV, water tanks etc
- 4. Passenger Convenience Equipment for the convenience of passengers in a passenger station
- 5. Good’s Services Cranes Main purpose: Used to load/unload heavy articles from/to wagons Equipment for good services in a good yard Fixed Jib Crane Mobile Crane Gantry Crane Types Goliath Crane
- 6. Good’s Services Cranes Equipment for goods services in a good’s yard Fixed Jib Crane Mobile Crane Gantry Crane Types Goliath Crane Fixed at some suitable point on good’s platform Most common type
- 7. Good’s Services Cranes Equipment for goods services in a good’s yard Rail-mounted crane Used along platforms Fixed Jib CraneMobile Crane Gantry Crane Types Goliath Crane Mobile cranes are most useful since is provides some flexibility since they can be used anywhere in the yard.
- 8. Good’s Services Cranes Equipment for goods services in a good’s yard Fixed Jib Crane Mobile Crane Gantry Crane Types Goliath Crane Wagons/trucks are parked under the gantry for loading/unloading Consists of two parallel beams supported on columns Hoisting machinery is fixed in a way that allows its travel on the parallel beams
- 9. Good’s Services Cranes Equipment for goods services in a good’s yard Fixed Jib Crane Mobile Crane Gantry Crane Types Goliath Crane Capacity ranges from 2 to 200 tons Electrically powered in most cases Painted in yellow for safety reasons {Wikipedia}
- 10. Good’s Services Cranes Equipment for goods services in a good’s yard Fixed Jib Crane Mobile Crane Gantry Crane Types Goliath Crane Goliath crane is a modified version of gantry crane, the frame is not fixed, it can move in on a track on the ground.
- 11. Good’s Services Weigh Bridges Provided to get the weight of loaded wagon. should be provided in a separate siding. Equipment for goods services in a good’s yard Accurate weigh requires wagons to be either stationary or low speed. Weigh bridges are level platforms with rails connected to a rail track in the good’s yard. http://m.indiamart.com/safe-instruments/
- 12. Good’s Services Loading Gauges Equipment for goods services in a good’s yard A loading gauge defines the maximum height and width for railway vehicles and their loads to ensure safe passage through bridges, tunnels and other structures. {Wikipedia} Aahha, this is why we need a loading gauge!! Will this freight train pass through?
- 13. Good’s Services Loading Gauges Dimensions will vary between countries & lines. A loading gauge consists of a profile made of angle iron which is suspended from a frame on the rail track. If any part of the loaded wagon touches the profile, this indicate over-loading. Reduced loading before wagon proceed for its journey.
- 14. Good’s Services Loading Ramps A strip of platform at the end of a siding built to wagon floor height. Wit its far end sloped to road level. Equipment for goods services in a good’s yard Buffer-stop prevents wagon striking and damaging the platform Hinge plate Required for loading & unloading of motor vehicles. Buffer-stop
- 15. Locomotive’s Services Loco-sheds Parallel tracks Engine enters & leaves from both ends Traverser shifts engines between tracks. Required to clean, repair and maintain locomotives. Two designs: Equipment for the locomotives in loco-yard Rectangular Rectangular Circular CircularoRadial tracks. oTurn-table shifts engines direction to desired track. o Engine enters & leaves at a single end.
- 16. Adapted from the work published by Paul, J. Dolkos “Ten tips for freight yard design and operation –Basic yard function and operation” Circular Loco-shed
- 17. Locomotive’s Services Loco-sheds/ Comparison Equipment for the locomotives in loco-yard Advantages of Circular Design Disadvantages of Circular Design
- 18. Locomotive’s Services Ash-pits, Ash-pans, Drop-pits and Examination-pits Ash-pits and ash- pans are used to receive ashes from locomotive boilers. Equipment for the locomotives in loco-yard Examination-pit is used to examine locomotive engine from underneath. Drop-pit is used to remove the wheels of an engine by lowering the wheels in the pit for examination and repair.
- 19. Locomotive’s Services Turn-Table Construction and operation cost of turn-table is relatively high. It should be built only if space is not available for a triangle “wye” tracks. Equipment for the locomotives in loco-yard A railway turntable is a device for turning railroad, usually locomotives, so that they can be moved back in the direction from which they came
- 20. Locomotive’s Services Triangle – “Wye track” Construction and operation cost of Wye rails is cheaper than a turn-table BUT needs larger land space. Equipment for the locomotives in loco-yard A railway Wye is a set of short tracks used for direction change (i.e. Reversing) locomotives.
- 21. Serves the same purpose of cross-over or turnout. Locomotive’s Services Traverser “Transfer Table” Used to transfer railcars or locomotives between parallel tracks without switching (shunting). Usually used in loco-yards and it occupies less space. Equipment for the locomotives in loco-yard
- 22. Safety Devices Derailing Switch “Trap Switch” Similar in function to a scotch block. Scotch block is no longer used Equipment for the safety of train traffic movements Obstruction to prevent train movement beyond a dead end, or prevent trains entering the mainline without provision.
- 23. Safety Devices Buffer Stop A buffer stop or bumper (US) is a device to prevent railway vehicle from going past the end of a section of track. Equipment for the safety of train traffic movements Required at end of tracks (sidings) or terminal stations.
- 24. Safety Devices Buffer Stop Equipment for the safety of train traffic movements Requirements for buffer stop Should be strong enough to sustain impact of rolling locomotive / rail car. Should be clearly visible from a considerable distance. Buffer disc or beam with cross-sleeper, painted in red colour is provided Red lamp fixed at the centre to indicate at night time The Gare Montparnasse accident { Wikipedia}
- 25. Safety Devices Sand Hump on Snag Dead End Modified version of the buffer stop. Equipment for the safety of train traffic movements Similar in function to buffer stop. Mostly used at dead end of siding tracks. A hump of sand with rising gradient at the dead end of a siding is provided. It helps additional resistance to movement of railcars before the buffer block.
- 26. Safety Devices Fouling Marks Fouling marks (FM)are points fixed between a pair of converging tacks to indicate possibility of collision of trains beyond these points. Equipment for the safety of train traffic movements Fouling Marks basics: Firmly fixed to the ground at right angle to direction of track. Painted in white colour and letters “F” and “M” clearly marked. Wooden sleepers or concrete slabs are used to make the fouling marks. Laid in the line of top level of ballast section.