摘要：研究目的：本文针对丹大线信号工程设计中存在的一些技术难点，对区间路基地段综合接地、道岔缺口 信息远程视频监测、与C3衔接站和非纯客运站应答器设置、金州站调度指挥方案等问题，分析多种方案的可 行性，并提出最终解决方案。 研究结论：(1)区间路基地段采用贯通地线坡脚直埋方式可满足本工程多数情况下的接地电阻要求； (2)使用道岔缺口监测系统单独组网的方案可解决远程实时视频监测的问题；（3)与C3衔接站C2和C3应答 器设置方式应相互兼容；（4)非纯客运站应答器设置应满足运输需求；（5)金州站根据运输需求应具备调度所 和站调楼的不同集中控制模式；（6)本研究成果可为其他新建时速200 km客货共线铁路和类似铁路的设计 提供一定借鉴。

Abstract ： Research purposes ： This paper focuses on difficulties in Dandong - Dalian railway signal engineering design， including integrated grounding at subgrade sections outside stations， remote video monitoring of switch gaps， balises setting at link stations to C3 sections and not - only - passenger stations，and dispatching design of Jinzhou station， analyzes the feasibilities of various programs，and proposes the ultimate solution. Research conclusions ：( 1 ) The directly buried mode linking up grounding wire at subgrade sections outside stations could conform to requirements of ground resistance mostly. ( 2) Switch gap video monitoring system networking independently could make the remote monitoring real - time. (3) Balises setting mode of C2 and C3 at link stations to C3 sections should be compatible with each other. (4 ) Balises setting at not - only - passenger stations should satisfy requirements of transport. (5 ) Jinzhou station should have different centralized control mode of railway bureau or station，depending on requirements of transport. (6) The research result can provide reference for other similar railway project.