GB heavy rail plays an indispensable and key role in railway upgrading and reconstruction projects. With the continuous growth of railway transportation demand, existing railway lines need to be upgraded and reconstructed to improve transportation capacity and operating speed. The replacement of heavy rail is one of the important links in upgrading and reconstruction. For some old railway lines, the original tracks may be worn and deformed due to long-term use, and cannot meet the growing transportation requirements. By replacing them with GB heavy rails, using their higher strength and better stability, the bearing capacity of the tracks can be effectively improved to adapt to the operation of trains with heavier weights and higher speeds.
The application of GB heavy rails is particularly important in improving the operating speed of railways. High-speed trains have extremely high requirements for the smoothness and stability of the tracks. Due to their sophisticated manufacturing process and high dimensional accuracy, heavy rails can provide a smoother running surface after laying, reducing vibration and bumps during train travel. At the same time, the high strength characteristics of heavy rails enable them to withstand the huge centrifugal force and impact force generated by high-speed trains, ensuring the safety of trains at high speeds. For example, in the speed-up reconstruction of some existing railway lines, the original light rail or low-strength heavy rail is replaced with GB heavy rail that meets the requirements of high-speed operation. With the optimization of the track fastener system and the roadbed, the train speed can be significantly improved from the original 120-160 kilometers per hour to 200-250 kilometers or even higher.
For the upgrading and reconstruction of heavy-duty railways, GB heavy rails are even more critical. The cargo transported by heavy-duty railways is huge, and the pressure resistance and wear resistance of the tracks are extremely demanding. The use of GB heavy rails, especially high-strength and high-wear-resistant heavy rails specially designed for heavy-duty transportation, can effectively extend the service life of the tracks and reduce maintenance workload and costs. In the curves and turnout areas of heavy-duty railways, the use of specially designed heavy rails and turnout equipment can better adapt to the huge loads of heavy-duty trains when turning and changing lanes, thereby improving transportation efficiency.