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About Iran

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:: Superstructure Laboratory ::

  Superstructure Laboratory

The experiments dealing with the mechanical and physical properties of the track components such as fasteners, pads,… are performed in this laboratory. The geometrical parameters of track can also be measured by portable devices. A set of some commonly used machines used during the construction or maintenance of the railroad superstructure and also a welding apparatus (thermit method) are located for educational purposes.

 

  Laboratory Apparatus:

  The brief description of the laboratory apparatus are as follows:

 

  1- Track Master

  It measures the geometrical parameters of tracks such as gauge, grade, torsion, super elevation,… .

 

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 Picture(1): Track Master

  

   2- Joint Gap Recorder

  It measures the joint gaps (the gaps between the rails) and the temperature of rails using sensors and a spot thermometer respectively.

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  Picture(2): joint Gap Recorder    

 

  3- Mini-Prof Apparatus

  The apparatus is used to measure and calculate the wear of rails, wheels, brakes and switches profiles.

 

 

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  Picture(3): Rail Min-Prof

 

  4- Sleeper Holding Test Apparatus

  Equipped with a compressive jack and a data logger, the lateral resistance of sleepers can be measured.

 

 

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 Pic(6): Compressive Jack           Pic(5): LVDT Picture                 Pic(4): Data Llogger         

 

  5- Static Loading Apparatus of Vosslo Fasteners

  It draws the load versus displacement diagram of a Vosslo fastener during the vertical static loading process.

 

 

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  Picture(7):Static Loading Apparatus of Vosslo Fasteners

  

  6- Static Loading Apparatus of Pads

  It draws the load - displacement or stress - strain diagrams of a pad during the vertical static loading process.

 

 

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  Picture(8):Static Loading Apparatus of Pads

 

  7- Plasser and Theurer Tamping Machine Simulator

  It simulates the operation of the Plasser tamping machine.

 

 

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  Picture(9):Tamping Machine Simulator

   

 

 

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  Picture(10):Rail Drill

  

  

  

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  Picture(11):Rail Splitter

 

   

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  Picture(12):Fastener Screw Driver Machine

  

  

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  Picture(13):Pandrol Installer

  
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                                Picture(14):Thermit Welding Apparatus

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