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Railway Maintenance Techniques

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Rail Corrugation Grinding

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Grinding technique specifically targeting and smoothing out corrugation, or wave-like distortions, on the surface of rail tracks.

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Continuous Track Monitoring

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The use of systems installed on regular operational trains or dedicated vehicles to provide ongoing assessment of track condition.

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Ballast Cleaning

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This technique involves removing dirt, dust, and debris from the ballast to maintain track stability and drainage.

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Ultrasonic Flaw Detection

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A non-destructive testing method using high-frequency sound waves to detect internal flaws in the rail tracks.

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Joint Elimination

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Replacing jointed tracks with continuous welded rails to reduce maintenance and improve ride smoothness.

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Vegetation Control

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Management of plant life around tracks seeing to minimize obstruction and potential hazards to safe rail operation.

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Undercutting

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The process of removing fouled ballast from beneath the tracks and replacing it with clean ballast for better drainage and stability.

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White-lining

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Marking out the correct track geometry before maintenance work, ensuring precise adjustments to the track alignment.

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Rail Grinding

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Rail Grinding is the process of removing irregularities and imperfections from the surface of rail tracks to extend their life and improve ride comfort.

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Resleepering

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Replacing old or damaged railway sleepers (ties) with new ones to restore track support and alignment.

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Flaw Detection Car Inspection

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The usage of specially equipped inspection cars to survey tracks for internal and surface defects using advanced technology.

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Tamping

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Tamping involves lifting and correcting the alignment of track to ensure stability and smoothness of train movement.

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Rail Flaw Repair

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The process of identifying and fixing surface cracks, holes, and other detectable flaws on rail tracks to prevent rail failure.

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Thermite Welding

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A welding method for joining rail sections using a molten metal created from a thermite reaction, ensuring a continuous and smooth rail surface.

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Rail Anchoring

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Securing rails to the sleepers to prevent unwanted longitudinal rail movements and to maintain track gauge.

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Rail Destressing

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The process of alleviating built-up stresses in continuous welded rails caused by temperature changes.

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Rail Straightening

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The process of bending rails back into their correct shape to ensure smooth train operations and track longevity.

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Gauge Widening

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Adjusting the track gauge to be slightly wider on curves to reduce flange friction and wear on trains and improve stability.

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Plate Cutting and Drilling

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The process of maintenance involving the cutting and drilling of baseplates for fixing rails to sleepers or supporting structures.

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Switch Grinding

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Grinding of the switch or turnout components to restore the proper profile and remove irregularities.

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Track Circuit Renewal

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Upgrading or replacing the electrical components of track circuits which are crucial for signaling and train detection.

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Track Renewal

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A comprehensive process that includes replacement of rails, sleepers and ballast to rejuvenate aging track infrastructure.

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Dynamic Track Stabilization

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A process that applies vertical and lateral forces to the track after maintenance to simulate train loading and settle the ballast bed.

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Fouling Point Adjustment

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Setting and maintaining the correct position of the fouling point within the railway turnout where vehicles standing must clear to avoid obstruction.

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Lubrication of Rail Joints

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The practice of applying lubricant to rail joints to reduce friction and wear, thereby prolonging the life of the rail track.

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