Where are the abandoned rails of HSR, how are they finally disposed of, why are they not recycled?

2022-07-18 0 By

Many people know that the construction cost of high-speed railway is much more expensive than that of ordinary railway. The construction cost of one kilometer of high-speed railway is 2-3 times that of ordinary railway of the same length. However, after the completion of high-speed railway, it also needs to spend a lot of resources to maintain, such as replacing the track.So what happens to the huge amount of rail that high-speed trains scrap every year?Why not recycle?What happens in the end?In fact, the treatment of them also reflects the profound wisdom of China today.High-speed railway: it uses concrete, asphalt mixture and other integral foundation to replace the track structure of granular gravel bed, also known as ballastless track, which is the advanced track technology in the world today.The picture shows China’s high-speed rail laying structure and design of high-speed railway and there is a considerable difference between ordinary railway, in order to ensure the security when the train runs at high speed, the flatness requirement of the high-speed railway tracks is very high, the strict limits on track smoothness within tenths of millimeters, so without a frantic jumble of the special high-speed railway track design,The two tracks are supported by a solid cement block instead of ordinary railway ties, thus ensuring that the track will not deform too much during long-term operation. However, due to the friction and collision of the track and the change of terrain during the operation of high-speed railway, the track will still have different degrees of settlement after long-term operation of high-speed railway.The picture shows China’s high-speed rail laying China every high-speed rail routes run for a period of time will conduct a comprehensive inspection, with special measurement equipment installed along the railway high-speed rail check-out car driving, measuring the inequality degree of each track, if you find a rail flatness not to exceed bid, will inform the engineering team to change it,China now has 40,000 km of completed high-speed rail, many of which have been in operation for more than five years. Every year, a large number of tracks are retired and replaced, but the thrifty Chinese government does not reuse these tracks. Instead, they scrap them.Behind it there are profound wisdom of China, China is not the demolition of a high-speed railway secondary use, the main reason is the uneven track has lost the use value, and because of the special material and manufacture process, the abandoned tracks back to the factory caused the cost of new tracks, oven and even higher than directly to create a new track,So these rails are going to be scrapped because of the cost, but that doesn’t mean they’re going to be thrown away, in fact they can still be used for other things.The picture shows China’s high-speed rail laying the tracks even scrap are excellent special steel, they will be steel cutting recycling and recycled into other parts need to be special steel manufacturing, such as high performance of the spring, steel plate, bolts and other materials, used to build buildings or manufacturing giant ships, or directly mixed recycled steel, and other scrap metal, used in the manufacture of other devices,While China’s high-speed rail lines churn out tons of abandoned tracks each year, the country’s industrial capacity is the greatest in the world, and its hunger for raw materials is so acute that the rails will always find a new home.On the face of China’s high-speed rail lines is frequent in rail, every year is very waste, but only for this maintenance, China high iron to keep a good running state, after all, high iron is very important for the development of Chinese society, greatly promoted the personnel exchanges and economic exchanges between the across China, has created a huge indirect benefit,The cost of replacing them with so many rails a year is dwarfish.