Generally, how often do rail rails change?
But the passenger dedicated line, such as the Beijing-Shanghai high-speed railway, the Wuhan Guangzhou high-speed railway, the Beijing Tianjin Intercity Rail replacement, the cycle is very long, generally can reach ten years or even in the past 20 years, because of the high iron light axle load, line status, and problems of the rail wear less, low probability.
This depends on the line conditions, such as the Daqin Line Heavy Haul lines, because each year the volume can reach 7 tons, generally less than a year to track, on the small radius curve rail replacement cycle is shorter, for many reasons, such as serious abrasion, stripping off block etc..
