地铁车辆段上盖平台下接触网悬挂固定研究

Study on Suspension and Fixing of Catenary under Upper Cover Platform of Metro Vehicle Depot

研究目的:与地铁车辆段接触网既有安装方式不一样,上盖平台下接触网悬挂固定需考虑上盖平台影响,结合土建要求、施工难度、安装工期影响及维护便利等因素进行研究,进而确定适应上盖平台结构特点的悬挂固定方案。研究结论:本文从地铁车辆段上盖平台下接触网悬挂方式选择出发,借鉴了高铁隧道内接触网悬挂固定方案,结合深圳地铁塘朗车辆段上盖平台下接触网设计优化进行了研究,结论如下:(1)地铁车辆段上盖平台下接触网宜采用横跨悬挂方式;(2)接触网悬挂固定采用结构预埋C形钢(槽道)方式,确定了C形钢技术参数和要求;(3)研究确定了接触悬挂定位(横向定位索、垂直吊索、腕臂等)、下锚及隔离开关安装对应的各类预埋件设计方案;(4)从工程管理的角度分析了接触网悬挂固定采用结构预埋C形钢方案的优越性,建议在接触网工程中推广采用。

Research purposes： The suspension and fixing of the catenary under upper cover platform are different from those with the existing methods because they need to consider the impact of upper cover platform. Therefore, it is necessary to do the research on the impacts of the civil engineering requirements, construction difficulty, installation period and maintenance convenience requirement on the suspension and fixing of the catenary under the upper cover platform to determine the available catenary suspension and fixing modes under the upper cover platform. Research conclusions： The research was done on the suspension and fixing of the catenary under the upper cover platform of the Tanglang Vehicle Depot of Shenzhen metro on learning the suspension and fixing modes of the catenary in the high - speed railway tunnel. From the research, it is concluded： （1） The crossing suspension mode should be adopted to the catenary under upper cover platform of metro vehicle depot. （2） The structure of the embedded C shaped steel （channel） should be adopted to the catenary under the upper cover platform on determination of the technical parameters and requirements of the C shaped steel embedded parts. （3） The design plans of the various embedded parts corresponding to the contacting suspension and fixing （crossing fixing cable, hoist cable and cantilever, etc） and installation of the anchor and isolation switch were determined on the research. （4） From the angle of the project management, the analysis was made for the advantages of the structure of embedded C - shaped steel mode for the catenary＇s suspension and fixing. The proposal was made that this mode would be widely used in the catenary engineering.