高速铁路接触网附加导线转换方案研究

Approach to the Conversion of OCS Additive Wire on High-speed Railway

接触网附加导线虽不与受电弓直接发生接触,但其状态与行车安全密切相关。在我国高速铁路建设初期,附加导线在转换处设计考虑不够全面,产生了不少问题。结合目前高速铁路的常规隧道断面和车站布置方案,研究适用于不同线路条件下的附加导线转换方案,保证附加导线和接触悬挂、附加导线和建筑物之间的绝缘距离,加强接触网系统的安全可靠性,同时满足技术经济性和景观性要求。研究结论:结合标准规范和工程实际,对附加导线转换处的设计方案进行方案比选,从绝缘距离、安装施工难度、建设成本、景观性等诸多方面对设计方案进行剖析,最后根据比选结果给出不同情况下的推荐方案。

Research purposes and methods： Although the additive wire of OCS doesn＇t contact withpantograph directly, its performances are closely related to traffic safety. In the early construction ofhigh-speed railway in China, the design of the additive wire at converting point didn＇t take into accountall related issues and resulted in many problems. The paper, with reference to the design of additive wireconversion on different high speed lines with conventional tunnel profile and station layout, looks for thedesign suitable for lines with different conditions to guarantee the insulation distances between the additivewire and catenary, between the additive wire and buildings and to meet the requirements for economy andlandscape at the same time. Research conclusions： with reference to standards, specifications andengineering practices, the paper conducts comparison of conversion designs of additive wire, and analysisof the design in many respects, such as the insulation distances, the difficulties in installation andconstruction, capital costs and landscape. Finally, depending on the comparison results, the paper offersrecommended plans for different circumstances and provides references for future design and construction.