Technical requirements of screw spike
Railway tracks, also known as rails, rails or tracks, are the core components of the railway system. They are mainly responsible for guiding the direction of train travel and working with switches to ensure that trains can move forward smoothly without turning during travel. Rails of different specifications carry different weights. For example, a 30kg rail means that the weight of this type of rail is 30 kilograms (kg/m) per unit length of 1 meter.
The structure of the track is mainly composed of two parallel rails, which are firmly placed on the sleepers, and the ballast under the sleepers provides the necessary support for the track. In addition, there are accessories such as rail supports, fasteners, rail clamps, rail clamps, spring bars and railway spikes, which together constitute the fastening system of the track.
It is worth mentioning that railway rails are made of steel and can withstand greater weight than other materials. The sleepers, also known as sleepers, gray sleepers or road sleepers, have the function of dispersing the weight of the rails and the pressure they bear, while maintaining a fixed track gauge to provide a solid foundation for the stable operation of the rails. With the development of the times, the material of sleepers has changed from the original wood to more durable concrete.
During operation, the track needs to bear a variety of loads, including vertical, lateral and longitudinal static and dynamic loads. These loads will be transmitted to the roadbed layer by layer through the rails, sleepers and roadbed. By applying the principles of mechanics for analysis and research, we can gain an in-depth understanding of the stress and strain of each part of the track under various load conditions, so as to evaluate its bearing capacity and stability.
In addition, track mechanics also studies the stress and deformation of the track structure under the action of locomotives and vehicles, as well as the impact of track structure diseases on track damage and train operation safety. These research results provide an important basis for track structure design and contribute to the formulation of reasonable track management standards.
