文档介绍：汉字摘要
从无缝线路定义和铺设无缝线路意义出发, 介绍了无缝线路养护和维修关键要求、 基础要求、 标准及关键点; 对无缝线路工作中存在问题进行分析, 找出了发生无缝线路胀轨关键原因, 并针对实际情况, 就怎样落实标准化, 加强无缝线路管理, 确保无缝线路设备安全提出了对应对策; 且在总结经验基础上,从胀轨跑道发生原因、 预兆、 预防、 处理上作了全方面叙述,有利于无缝线路养护维修和运行安全; 铁路工务事故从钢轨裂纹、 折断, 夹板裂纹、 折断, 辙叉伤损及无缝线路钢轨折断四方面分析了“三折”事故发生原因, 并从接头养护及钢轨养护维修方面介绍了预防“三折”事故方法, 以避免这一现象发生; 无缝道岔是无缝线路微弱步骤, 无缝道岔养护维修中发觉直尖轨拉成旁弯, 尖轨中部轨距减小, 直基础股钢轨有较大附加温度应力, 道岔前后钢轨锁定轨温失控, 岔前和限位器间实际锁定轨温严重超限等问题; 经过实际情况提出经过改善无缝道岔结构方法, 及无缝道岔单元管理方法处理道岔存在问题; 曲线是线路上微弱步骤之一, 依据曲线关键病害对曲线合适做部分养护方法, 提升线路质量, 确保行车安全; 工务设备是铁路运输基础, 常常了解工务设备改变状态, 对于正确组织线路维修及大中修工作, 和充足发挥设备潜力全部有重大意义。
关键词: 无缝线路 养护维修 胀轨跑道 轨温 三折 折断 无缝道岔 附加问题应力 直尖轨 工务设备
Abstract
From the definition of CWR CWR and the significance of the laying of the starting,Introduced CWR conservation and maintenance of the main provisions of the basic requirements, principles and key points;CWR work on problems in the analysis of,CWR to identify the occurrence of the main reasons for rail expansion,And for the actual situation, on how to implement standardization, strengthening CWR management, Safety equipment to ensure a seamless line the corresponding countermeasures; In summing up the experience and on the basis of the track from the runway expansion causes omen, prevention, treatment made a full exposition in favor of CWR conservation maintenance and operating safety; Railway accidents from the public works rail crack, break, crack splint, broken frog CWR of failures and broken rails analysis of four "Three Folding" the cause of the accident, And from the joints of the conservation and maintenance of rail has been introduced to prevent the " Three Folding " incident, in order to avoid the occurrence of this phenomenon; Seamless switch is the weak link in CWR, seamless switch maintenance track found a sharp pull straight into the side bending, the central rail gauge sharp decrease, the basic unit straight rail more additional thermal stress, before and after the rail switch lock track temperature out of cont