The construction of railway lines requires significant investment. Due to its long life cycle, the system can gain economic advantages over other modes of transport. To achieve this durability, however, it is necessary to build and maintain the railway system at the highest level of quality. Track construction is today one of the highest levels of automation in the construction industry.
Construction and maintenance work ensures high availability and maintainability of the track. In the following we briefly describe the individual key procedures.
Optimum wheel/track contact geometry and low dynamic surcharge loads in the vehicle/track system require continuous track care as well as immediate correction of track defects. This is particularly true for turnouts and crossings with critical wheel arches and for dynamic additional loads in the tongue and junction area. YONGYANG offers high quality heavy and light rails and welcomes your enquiries.
Dewatering measures reliably prevent water retention due to the accumulation of water in the soil and thus prevent a sharp increase in water content with changes in consistency and increasing deformation capacity. On railways, cross-sections, open railway ditches, interceptor ditches and associated pre-drainage systems take over the condensation and discharge of surface water. The deep drainage system is arranged as a subsurface drainage system for receiving and discharging unbound soil water.
The advantage of the bedding bed is its protection of the substructure. The railway ballast transfers and distributes the loads from the rail sleepers through the substructure to the ground and ensures the required positional security of the rail grate in both horizontal and vertical directions.
Matting contamination and ballast wear can only be reduced by high-quality ballast cleaning. Maintenance steps include
- Excavation of old ballast with cleaning chains.
- Cleaning by sieving, bouncing and washing.
- Installation of clean ballast.
The protective layer is a layer system applied to the roadbed that protects the overhanging soil from damaging deformations and frost. The installation of the protective layer can be trackless or tracked. The functional drainage system is part of the initial mass of the high-quality track and bearing layer or protective layer on fine-grained soils. Maintenance methods are.
- Excavation of the mixing zone and the soil.
- Creation of the road base in height, inclination and width.
- Installation and compaction of the base course.
In order to improve the initial quality and reduce wear, higher elastic elements are used in the superstructure. By placing additional elastic elements in the superstructure, noise and discontinuity points can be eliminated.
The use of more highly elastic elements effectively balances the stiffness in the longitudinal direction of the track. By selecting the position and stiffness of the highly elastic elements, the support can be effectively optimised. As speeds become higher, the reduction of dynamic loads and the equalisation of the longitudinal stiffness of the track become increasingly important.
The proper functioning of the tracks ensures the safety of millions of people and the health of the economy. Railway staff put a lot into their daily maintenance work. If your company needs to buy rails or railway related components, please contact us . As the largest manufacturer and supplier of rails in China, our factory has an annual production capacity of 2.2 million tons of steel sections. Our main products include light steel rails, heavy steel rails, crane rails, industrial and mining I-beams, U-arch steel, high-strength hot-rolled flat steel for automobiles, rail fasteners, etc.
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