rail track

Different design Standards should be taken because of the characteristics of the urban track traffic, so the reasonable standards, technical security, investment economic targets can be assured. The Support spacing of rail is one of the main design standards.

城市轨道交通的这些特点，决定了其应采用有别于国铁轨道的设计标准，以达到标准合理，技术安全，投资经济的目标。

A Novel Track Brake for Trapped Rail Car Use

一种新型卡轨车用轨道制动器

Establishing the dynamic performance simulation of high-speed train track random irregularity excitation model by taking the PSD ( Power Spectral Density), the change law of wheel/ rail vertical and horizontal force with curve radius value in less super high and super high state is obtained.

将德国高干扰谱用于高速动车动态性能仿真建立的轨道随机不平顺激扰模型，分析了欠超高和过超高状态下轮轨垂向力和横向力随曲线半径值变化规律。

On the conditions that the rail lateral, vertical and torsional vibrations, and the track irregularities are considered synthetically, the wheel rail contact geometry, the wheel track normal contact force model, and the wheel/ rail tangential creep force are solved in details.

详细研究了在充分考虑钢轨横向、垂向和扭转振动以及轨道不平顺作用下，轮轨空间动态接触几何关系、轮轨法向力以及轮轨蠕滑力的求解模型。

With the speeding-up of the train track, the demands of modern rail equipment lightweight are continually increasing.

随着轨道列车的不断提速，对现代轨道装备轻量化要求不断提高。

Rail track being fully insulated away the ground, is quite difficult. Thus, the current leaks from the rail and forms stray current, which causes corrosion to the buried metal damage along the MTR lines.

钢轨轨道要做到对地的完全绝缘，是相当的难度的，因而，电流会通过钢轨泄漏出去，形成杂散电流，对地铁沿线附近的埋地金属具有电化学腐蚀。

Among them, an outdoor test track inspection apparatus includes rail inspection instrument measured the orbital plane coordinates, track top elevation, gauge, level, track direction, height and distortions state track geometry parameters.

其中，轨检仪室外检测内容包括轨检仪实测轨道平面坐标、轨顶高程、轨距、水平、轨向、高低及扭曲等轨道几何状态参数。

The dynamic detection and debugging of rail track, communication, signal, power supply, disaster monitoring and other systems has been completed and the whole system has been optimized, the group said.

轨道、通信、信号、供电、灾害监测等系统的动态检测和调试已完成，整体系统功能得到了优化。铁路部门介绍，牡佳高铁联调联试结束后，将转入运行试验阶段（trial operation），为后续全线开通运营奠定基础。

Research on Design of the 40.5 m Steel Track Girder for Line 2 of Chongqing Light Rail

重庆轻轨2号线40.5m钢轨道梁设计研究

In order to analyzing the vehicle-track coupling vibration character of infinite length track, a time-varying model of railway tangent track spatial vibration was presented. This paper gives out states, feature and causes of alternately rail side attrition in the straight line intervals of railway.

针对无限长轨道上车辆轨道耦合振动响应特性，建立了铁路直线轨道结构空间振动模型。对铁路直线地段出现的钢轨交替不均匀侧磨的形态、特征以及成因进行了分析。

The rate of rail creep lengthening is not the same at the different time after the new rail laying on the track.

得出新钢轨上道后的不同时期，其蠕变伸长速率是不同的。

It may decrease fatigue damage causing by rolling contact and side damage on track and prolong rail service life 0.5~ 1 time by means of grinding rail track.

通过对钢轨的修磨可减少由于滚动接触疲劳引起的钢轨损伤，减少钢轨侧面磨损，可延长钢轨的使用寿命0.5~1倍。