Have you ever notice or not, almost along railroad usually has gravel that situated
on the ground , the right side, and the left side. This gravel certainly purposive to spread on that
railroad. and it turns out this gravel has function that very important for support it presence that stand on.
on the ground , the right side, and the left side. This gravel certainly purposive to spread on that
railroad. and it turns out this gravel has function that very important for support it presence that stand on.
Function of gravel on railroad
*on the bridge1. The first function of gravel on railroad is as bearing ballast. With
this gravel railroad can standing with stable. So that the trains that run on it can run well
this gravel railroad can standing with stable. So that the trains that run on it can run well
2. This gravel also has function for absorping vibration that occured when the trains pass. So that the vibration that occured when the trains pass can be reduce. And the railroad can be run properly.
3. The next function is for holding and expediting sluice (water flow) when raining. This function role for prevent soil erosion or erosion arounds railroad. Where if it is happening so it can causing serious accident to a train passing such as train fell and the others.
4. And the last function, gravel also has function for obstruct grass growing around rail. Growing grass around rail may directly nor indirectly causing tilling the soil on the under railroad. It is certainly may be harmful because if soil on the underground of railroad not stable so it will endangering train travel.
Where is there no gravel on some place?
As We see in some places, there are certain positions where under the railroad line there is no gravel. Like the railroad that exist on the bridge or highway, where there is no one grain of gravel that very important role for the existance of the railroad. This happens because all the functions of gravel had been taken over by its functions by other mechanisms.
*on the highway
On the bridge railroad, the bridge has been specially designed so as to withstand the vibrations that will occur is generated when the trains passing. Thus even with railroad that found on the highway, the road aspalt has replaced the role of gravel fine. So that on it places, there's no need for the gravel to put on under railroad.
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