Research purposes: By analyzing the effect on impact force between wheel and rail by track irregularity, technical evidences on limit of irregularity on rail welded joints are provided.
研究目的：为了研究轨道不平顺对轮轨作用力的影响，从而为钢轨焊接接头不平顺限值提供技术依据。
When a turnout is connected with CWR through welded joints, the longitudinal rail temperature force ACTS directly on the frog and the switch section along with the variation of rail temperature.
道岔与无缝线路焊接后，随着轨温的变化，长钢轨纵向温度力将直接作用于道岔的撤叉和转撤部分。
According to fatigue damage accumulation theory, test load of verified fatigue test on rail across beam and welded connections with integral joint of combined steel truss bridge was gotten.
依据疲劳损伤累积理论，确定了公轨两用钢桁桥轨道横梁与整体节点连接头验证性疲劳试验的试验荷载。
Long rails in jointless track are usually made on welded rail site or in railway welded rail factory.
无缝线路长钢轨通常由铁路焊轨厂或现场焊轨基地焊接。
The rail welding plays an important role in the engineering of laying continuous welded railway (c WR), and decides the quality of rail tie-in directly, which has great influence on railway security.
钢轨焊接是无缝线路建设工程中的关键环节，它直接决定了钢轨接头的质量，从而对铁路安全有重要影响。
This paper makes a comparison of the quality of rail joints welded by different methods, proposes that the movable flashed welded rail should be adopted on passenger dedicated line, and pres...
本文对不同焊接方法的钢轨焊头质量进行比较，提出线路上应优选移动式闪光焊焊接钢轨，并提出基地焊接长定尺钢轨的参考工位工序配置。
The interrelated action principle of beam and rail of continuously welded rails on bridge is the pivotal technique of track engineering.
桥上无缝线路梁轨相互作用是轨道工程的关键技术。
Grey spot has become the most conspicuous defect in resistance welding joint of the structure of continuous welded rail track.
灰斑已成为无缝线路钢轨结构接触焊接头最突出的缺陷。
On the basis of finite element principle, a mechanical model is advanced for calculating the rail displacements and longitudinal forces of the welded turnout group. A computer program is designed.
基于有限单元法，建立了多组无缝道岔相联结时钢轨位移和纵向力的计算分析模型，编制了计算软件。
Results show that the additional temperature stress and deformation of the continuously welded turnout will increase with the increase of rail temperature.
结果表明：无缝道岔的附加温度力与变形随轨温变化幅度的增大而增加；
Measurement of the flatness of rail hand been finished by the rail foot flatness measuring instrument, it shows that the device designed can achieve the measure of Smoothness of welded joints.
利用所研制的该平直度检测仪进行了钢轨焊接接头的平直度测量，应用表明：所研制的装置能够实现钢轨焊接接头的平直度测量。
Research purposes: To solve the problems on designing continuous welded rail on bridge in the small radius curve section.
研究目的：解决小半径曲线地段桥上无缝线路设计的难题。
This paper assumes that the welded turnout in the continuously welded rail track is a structural system, and the railway tie in the welded turnout is a beam on the continuously elastic foundation.
本文假定跨区间无缝线路中的无缝道岔为一结构体系，岔枕为连续弹性基础上的有限长梁。
In order to guarantee the safety and stability of high-speed train, the study of continuous welded rail (CWR) tracks has become more and more important.
为了保证无缝线路轨道的使用寿命及确保行车安全，对于无缝线路技术的研究显得越发重要。
Research on method of assistant decision on Management Information System for continuously welded rail of across section;
该平台对于船货信息的可视化、实时动态管理和辅助决策分析等具有现实意义。
Research on method of assistant decision on Management Information System for continuously welded rail of across section;
该平台对于船货信息的可视化、实时动态管理和辅助决策分析等具有现实意义。
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