轨道与机车车辆作为一个动力系统,是由动荷载的互相影响而共同作用着。现代铁路运输发展的趋势是:高速、重载、大密度。采用重型钢轨和配件,在列车反复通过作用和气候的影响下,轨道破坏程度日增。为保证行车安全和延长设备使用寿命,有必要要求改革轨道结构及其养护方法。 轮轨间的作用力使钢轨发生波形运动,而致道钉松弛,轨枕上、下振动,并压入通床, Track and locomotive as a dynamic system, is the interaction of dynamic loads and work together. The trend of modern railway development is: high speed, heavy load, high density. The use of heavy rail and accessories, the train repeatedly through the role and climate under the influence of increased orbital damage. In order to ensure traffic safety and prolong the service life of equipment, it is necessary to request the reform of orbital structure and its maintenance methods. Wheel-rail interaction between the rail to make the waveform movement, resulting in loose staples, sleepers up and down vibration, and pressed into the bed,