The Structure Analysis about Continuously Welded Rail in Special Railway Section

The stability of the continuously welded rail (CWR) is very important for the railway operation, the strength and stability of the CWR in the special section of railway must be studied before designing and laying the CWR. The railway section between Jiujiang Bridge and Boshuihu Bridge administered by Nanchang Railway Administration, since the length of this railway section on the subgrade is less than 300 m desired by the maintenance codes, so the special design is needed for this CWR section. According to the CWR structure of this section, this paper puts forward two stress free temperatures, and two times to draw the long rail while the CWR laying. To ensure the need of stability and strength desired by the maintenance codes, some special maintenance measures are also put forward for this section CWR.