With the improvement of China's comprehensive national strength and infrastructure construction,China High-Speed RailIt has become a "business card" of the country. At present, the total construction distance of China's high-speed rail has reached 4370,000 kilometers, corresponding to the length of railroad tracks and maintenance sections may exceed this number. However, these are discardedRailsWhat will be done?
RailsThe service life is generally about 10-15 years, but it will actually be affected by a variety of factors. High-speed rail is designed to have a higher speed, and in order to meet the requirements of high-speed operation, high-speed railRailsIt must have the characteristics of high strength, high toughness, high wear resistance and high stability, and it also needs to have electrical conductivity. However, prolonged and high-frequency use can cause:RailsAging and damage. toBeijing-Shanghai high-speed railwayFor example, its maximum travel speed is 350 km/h, and the shortest departure time interval is only 4 minutesRailsIt's a huge challenge. Due to the huge pressure of transportation,Beijing-Shanghai high-speed railwayEvery 2 years or so, a major overhaul is required.
Well, the abandoned high-speed railRailsWhat should I do? Some of them are of better qualityRailsIt can be inspected, repaired and processed and then used for further use, for example on railways for normal-speed trains, or as tracks for other factory shipments. Those are badly damagedRailsIt can be developed into tools, tools, castings, and other products. However, a small percentage of repurposing is not of high valueRailsMay be buried in situ or left unused in open space.
One might ask, since theseRailsCan be repurposed, so why not do it? Actually, the existing oneRailsSpecial materials and manufacturing processes are used, and re-smelting is not possible in general factories. Furnace return needs to be **Electric stoveequipment, and consumes a lot of itElectricityresourcesShipping costs, storage costs and labor costs, compared to re-smelting a batchRails, which can be more expensive this way.
In addition, technology is a challenge. Currently domesticRailsThe secondary processing technology is not yet mature and cannot be supportedRailsThe whole process of reprocessing. In addition,RailsIt belongs to the state-made steel and is state-owned property, and it is not allowed to be disposed of privately by individuals or people. If someone buys and sells privatelyRails, it is a crime, so no one dares to do it.
High-speed railRailsReplacement is a complex and delicate process. First of all,RailsIt is made up of multiple parts and requires the use of a crane for disassembly and installation. Part of it was disassembledRailswill be placed nearby, another part will be transported back to the station, and some will be buried near the tracks.
In addition, China has also adopted integrated rail change technology. This technology relies on the collaborative operation of the rail welding car and the construction vehicleRailsFixed to the end of the job, then unload the old rails and **, and finally the new and oldRailsWelding is carried out to form a seamless line. The application of this technology not only improves the efficiency of the rail change operation, but also ensures the standardization of the track change.
In addition, our country hasSeamless railstechnology, which is a technology independently developed by China. Seamless railsMade of special steel, it can withstand the demands of high-speed operation, smooth driving and long service life. The application of this technology has not only improvedRailsIt also reduces the waste of steel resources.
All in allChina High-Speed RailThe development is inseparable from high standardsRailsIn the tank. ScrappedRailsDisposal is a challenge, but a small portion can be repurposed, and most of it may be disposed of into other products or buried in situ without being wasted. In high-speed railRailsIn terms of replacement, China has adopted integrated track change technology and technologySeamless railstechnology, and continuously improve the efficiency and standardization level of rail change operations. In the future, with the development of technology, it is believed that there will be better ways to dispose of abandoned high-speed railRails