关于铁路单线隧道接触网弓形腕臂预配平台的相关研究

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【摘  要】为降低铁路单线隧道接触网弓形腕臂预配施工难度，论文研究了一种接触网弓形腕臂预配平台，结合单线隧道内弓形腕臂数据精测技术及计算软件，精确测量预配，保证弓形腕臂的安装精度和质量，使弓形腕臂在现场施工中一次成优。论文结合实际，就某铁路单线隧道接触网弓形腕臂预配平台作具体分析。

【Abstract】In order to reduce the difficulty of the pre-fabrication construction of the arched catenary cantilever in railway single track tunnel， this paper studies a kind of pre-fabrication platform of arched catenary cantilever. Combined with the data precision measurement technology and calculation software of arched cantilever in single track tunnel， the platform can accurately measure the pre-fabrication， ensure the installation accuracy and quality of arched cantilever， so that the arched cantilever can achieve the best quality at one time in the field construction. Combined with the actual situation， this paper makes a specific analysis on the pre-fabrication platform of arched catenary cantilever in a railway single track tunnel.

【關键词】单线隧道;接触网弓形腕臂预配平台;腕臂数据

【Keywords】single track tunnel; pre-fabrication platform of arched catenary cantilever; cantilever data

【中图分类号】U225.4                                             【文献标志码】A                                                 【文章编号】1673-1069（2021）02-0180-02

1 引言

金台铁路为浙江省第一条自主建设的电气化铁路，正线为单线，隧道也以单线隧道为主，单线隧道最大特点为隧内净空面积小，所以接触网隧内悬挂形式为弓形腕臂悬挂，通过复合绝缘子和隧道壁或吊柱连接固定，整体呈150°向上倾斜，上端和轨面线平行安装承力索座，整体结构相对简单。（剩余2508字）