合福线接触网施工技术探讨 毕业设计论文.pdf

湖南铁路科技职业技术学院电子电气系毕业设计（论文） 目 录 摘要···················································································································2 第一章 接触网··································································································3 1.1 接触网的定义·······························································································3 1.2 接触网的发展史····························································································3 1.3 接触网的组成·······························································································4 1.4 接触网的施工现状及存在的问题········································································6 第二章 合福线接触网的施工·················································································8 2.1 下部工程·····································································································8 2.1.1 基础、支柱····························································································8 2.1.2 预埋件··································································································9 2.1.3 拉线·····································································································9 2.1.4 地线、接地极························································································10 2.2 支持结构···································································································11 2.2.1 软横跨、硬横跨·····················································································11 2.2.2 支柱装配·····························································································11 2.3 线索架设及接触悬挂·····················································································12 2.3.1 承力索及接触线架设···············································································12 2.