新线引入工程与土建相关的接触网优化策略探讨

Discussion on Strategy of OCS Optimization Related to New Line Introduction Engineering and Civil Works

新线引入既有枢纽或车站接触网改造工程中,往往遇到土建施工困难、影响行车组织以及工程投资较大等难题,影响工程建设质量及工期。本文总结了新线引入时接触网改造与土建相关的系列技术难点,基于常规方案面临的问题,提出了方案优化的主要原则、策略及步骤,形成安全可靠、科学合理、经济及社会效益更优的方案。同时,结合昌赣客专引入南昌西枢纽工程,分别从牵引供电分段和接触网平面布置两个策略方向提出优化方案,为新线引入既有接触网工程改造施工提供思路和参考。

In the reconstruction engineering of overhead contact system(OCS)for introduction of new lines to the existing hubs or stations,problems such as construction of civil works,traffic organization and large project investment usually exist,and they will affect the construction quality and time limit.This paper has summarized a series of technical difficulties of reconstruction of OCS and civil works when a new line is introduced.Based on the problems of conventional schemes,the main principles,strategies and steps of scheme optimization have been put forward so as to form a scheme which is more safe,reliable,scientific,more reasonable in terms of economic and social benefits.Taking the introduction of Nanchang-Ganzhou Passenger Dedicated Line into Nanchang Western Terminal as an example,the optimization scheme has been formed in terms of traction power supply section and catenary layout,and it is able to provide ideas and references for the reconstruction of the existing OCS for introduction of new line.