Research On Construction Of Overhead Contact System For Capacity Expansion Of Yueshan Electrified Terminal

First construction background,engineering feature of the project of capacity expansion of yueshan electrified terminal is introduced, and differences between capacity expansion of electrified railway and new lines in technical features,realizing process and key technologies in construction of capacity expansion of yueshan electrified terminal is analyzed. On the basis, the construction organization plan is set up and key technologies in construction of capacity expansion of yueshan electrified terminal is analyzed, such as process and technology of exchanging lines,constant tension exchanging lines,assembling and calculation of cantilever,calculation and installing of dropper,safety and protection of construction,error control of construction. Process and technology of exchanging lines,transitional construction,lifting technology of headspan in capacity expansion of existing railway lines is optimized. The safety distance is calculated under the condition of "V" outage Calculated, the best safe distance of grounding line is derived.At last experiences of safety and management of construction and logistics delivery is summarized in this paper.This paper is valuable to enigeers that woking on capacity expansion of electrified railway and new lines.