Steel Rail damage refers to the breakage, cracks and other damages that affect and limit the performance of the steel rail during use.
In order to facilitate statistics and analysis of steel rail damage, it is necessary to classify steel raill damage. According to the location of the damage on the rail section, the appearance of the damage, and the cause of the damage, it is divided into nine categories and 32 types of damage. The two-digit number is used to classify the damage. The tens digit indicates the location and state of the damage, and the single digit indicates the cause. The cause of the injury. The specific content of steel rail damage classification can be found in the"Railway Engineering Technical Manual (Track)".
Steel Rail fracture refers to one of the following conditions: the full section of the steel rail is broken into at least two parts; the crack has penetrated the entire rail head section or the rail bottom section; the top surface of the rail has a piece with a length greater than 50mm and a depth greater than 10mm. Broken steel rails directly threaten driving safety and should be replaced in time. Rail crack refers to the separation of part of the steel rail material except for the rail break, forming a crack.
There are many types of steel rail damage, such as wear, peeling, rail head nucleation, and rail waist bolt hole cracks.