The tracks on the stones have what effect?
When the line state occurs (level. Level. Direction), line maintenance work area workers will be used to track lifting up, then ramming into the gravel at the bottom of the sleeper, the line restored to good condition.
The stones support the rails and concrete sleepers, while the force from the train passes evenly to the subgrade
There is one very important point, due to thermal expansion and contraction, the rail in the summer or winter there will be expansion and contraction, so that line crawling up the runway or off track rail, and the stones can well make up for the lack of lines is to prevent and stop crawling up track or off track.
The stones piled together have good elasticity and scatter the vibrations of the train, giving the passengers a sense of comfort
