Abstract：
The railway track, referred to as rails, rail, rail etc.. For the railway, and in cooperation with the switch, so the train can walk without turning. Track usually consists of two parallel rails. Rail fixed on the sleeper, the sleeper under the ballast for the road. Made of iron and steel rails, than other materials to carry greater weight. Sleeper, sleeper, sleeper or road, rail weight function is toseparate the distribution, and keep track of fixed, maintain the track gauge. In general, Lu ballasted track is arranged at the bottom of the gravel paved.Road, also known as ballast ballast, gravel or ballast, is to provide flexibility for the track and drainage functions. The rails can also spread on the base of concrete. (the bridge is quite common), or even embedded in concrete.
Railway track must often repair in order to maintain the good operation state.Rail repair is hard work, takes a lot of manpower to complete the past, is nowgradually replaced by machine. The main maintenance of railway track repairwork includes:
Rail grinding, improve the plane and vertical rail.
The replacement of part or all of the rail.
Replacing sleeper.
Tamping, cleaning, replacement and supplement ballast.
In the busy line because the train spacing is very short, so operators will bepart of the maintenance work in automation engineering train most, to improve the work efficiency
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