复杂艰险山区电气化铁路接触网关键技术问题及应对措施  

Key Technical problems and Corresponding Solutions of the Overhead Contact System of Electrified Railway in Complicated and Dangerous Mountainous Areas

作　　者：杨佳[1] YANG Jia(China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu 610031,China)

机构地区：[1]中铁二院工程集团有限责任公司,成都610031

出　　处：《铁道标准设计》2021年第5期149-152,共4页Railway Standard Design

基　　金：中国国家铁路集团有限公司科技研究计划重大课题(K2019G041)。

摘　　要：复杂艰险环境是影响山区电气化铁路接触网正常服役的关键因素之一。通过分析总结复杂艰险山区电气化铁路面临的各种地形地貌、地质灾害和气候环境,提出影响接触网运行的关键问题。研究表明:山区电气化铁路沿线接触网面临高海拔、长大坡道、特长隧道(群)、大峡谷、高地震烈度、高地热、大温差、重覆冰以及强日照等复杂艰险的严酷环境,在借鉴已有电气化铁路设计、施工及运营经验的基础上,充分分析环境对象及特征,结合接触网服役性能,系统性、针对性地提出适用于山区电气化铁路各种典型环境下接触网的应对措施及研究方向,可为电气化铁路防灾减灾技术提供理论基础和技术保障。The complex and difficult environment is one of the key factors affecting the normal service of the overhead contact system(OCS)in mountainous areas.By analyzing and summarizing the various topography,geological disasters and climate environment of the OCS in complicated and dangerous mountainous areas,the key issues affecting the operation of the OCS are put forward.It is shown that the OCS in mountainous areas is confronted with complex and difficult harsh environments such as high altitude,long ramps,extra-long tunnels(groups),grand canyons,high seismic intensity,high geothermal heat,large temperature differences,heavy ice cover,and strong sunlight.It is recommended that the environmental objects and characteristics should be fully analyzed based on the experiences of design,construction and operation of existing electrified railways.In order to improve the technology and capability of disaster prevention and mitigation for the electrified railways,suggestions are systematically and targetedly proposed for the OCS in various typical environments of electrified railways in mountain areas combining with the service performance of the OCS.

关 键 词：复杂艰险环境 山区铁路 电气化铁路 接触网 技术问题 应对措施 防灾减灾 

分 类 号：U225[交通运输工程—道路与铁道工程]