What should be paid attention to when laying rails

01 Planning and site selection

When laying rails, site selection and planning are the first steps. The terrain should be considered, and areas with unstable geology should be avoided as much as possible, such as places prone to landslides, mudslides or ground subsidence.

If rails are laid in these places, it will be dangerous for trains to run, just like choosing a good foundation for building a house.

And the route planning must also take into account the surrounding cities, villages, factories, etc., to facilitate people's travel and the transportation of goods.

02 Precision control

The flatness of the track is also very critical. If the track is uneven, the train will be bumpy when running, which will not only affect the comfort of passengers, but also cause serious wear and tear on the wheels, rails and other parts of the train.

Therefore, when laying, special measuring instruments must be used to accurately measure the height and levelness of each section of the track, and the error must be controlled within a very small range.

This is like laying a super flat "runway" for the train so that it can run steadily.

03 Spacing customization

The spacing between rails must also be strictly controlled. Different types of trains have different distances between wheels, which requires the spacing of rails to meet the corresponding standards.

If the spacing is not correct, the wheels of the train may derail, which would be a major accident. This is like customizing a suitable "track groove" for the wheels of the train so that it can only go along the specified route.

04 The foundation of sleepers

There are many technologies needed to lay rails, and one of the important technologies is the laying of sleepers. Sleepers are like "mattresses" for rails, which can evenly distribute the weight of the train and make the rails more stable.

Today's sleepers are made of wood, concrete and steel. When laying sleepers, it is necessary to ensure that the distance between them is uniform and they are tightly connected to the rails.

For example, concrete sleepers must be firmly fixed to the rails with special fasteners so that they can withstand the huge pressure of the train.