The relationship between steel rail and sleeper

Edit:Zongxiang Heavy Industry--Lucas Date:2020-01-06 10:21:46

If you have conscientious observed the train tracks, you will surely find that the two rails of the railway are not directly laid on the ground.

The steel rail is nailed to the sleepers with rail spikes, and then the sleepers nailed to the rail are erected on the roadbed covered with countless small crushed stones. what's the point of doing this? Let's take a look at it next.

First, security is the first element.  The wheels of the train are tightly attached to two steel rails to roll, and the steel rails are nailed on the sleepers, which are laid on the ballast, so that the train can run safely, stably and at high speed. (crane rail suppliers)

Secondly, ensure that the subgrade surface will not sink.  The load capacity of the train is very large. If the steel rail is directly laid on the roadbed surface, the contact area between the steel rail and the roadbed surface is small, and the weight per unit area is large. If the roadbed surface cannot bear such a large weight, the subsidence will occur. If the steel rail is nailed on the sleepers, the contact area will be enlarged. (crane rail suppliers)

Finally, avoid the rail from being skewed and uneven.  If sleepers are directly laid on the subgrade surface, not only is the direction difficult to fix, but also subsidence will still occur.  Only by laying the sleepers on the ballast can the weight of the train be transferred to the sleepers through the rail, and then the sleepers are transferred to the larger subgrade surface through the ballast, thus increasing the contact area and reducing the pressure per unit area, and the subgrade surface can also bear a large weight of the train.

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