Research purposes: Reconstruction of Tuole Railway Station was a key controlled project of emergency engineering for construction of the second line between Lhasa and Golmud of Qinghai-Tibet Railway.

Taking the Qin-Shen line for example,this article gives a description of the technological process of welding & storage of continuous rails in the base,bottom ballast installation,track-laying,field welding,stress release and fastening down of rails and precautions for the construction of one-time CWR track laying on monoblock concrete sleeper

The paper introduces a method of calculating the time limit for track laying and bridge erecting engineering project, in which several factors are quantized.