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。
When train runs from the rail of high rigidity to the rail of low rigidity, the rail vertical force, rail acceleration and tie acceleration gradually change from large to small.
当列车从高刚度轨道到低刚度轨道时，钢轨垂直力、钢轨加速度、轨枕加速度是由大逐渐减小，没有突变。
Its function is fixes the rail on the railroad tie, maintains the gauge and the impediment rail is opposite in the railroad tie vertically and horizontally to the migration.
其作用是将钢轨固定在轨枕上，保持轨距和阻止钢轨相对于轨枕的纵横向移动。
Personnel working on a scaffold platform with full handrail, mid rail, toe boards and gated access are not required to tie off when working inside the platform area.
在扶手、间隔档、板和进出门齐全的脚手架平台上工作的人员，如果在平台区域内部工作，不需要系牢自己。
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。
Aiming at vibration analysis of seamless turnout on bridge, the rail-turnout-tie-bridge spring-damping vibration model was built by using finite element method.
针对桥上无缝道岔，运用有限单元法，建立了钢轨-岔枕-桥梁弹簧-阻尼空间振动模型。
Aiming at vibration analysis of seamless turnout on bridge, the rail-turnout-tie-bridge spring-damping vibration model was built by using finite element method.
针对桥上无缝道岔，运用有限单元法，建立了钢轨-岔枕-桥梁弹簧-阻尼空间振动模型。
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