一作用

• The mechanism for vibration for trains " running is the mutual effects between wheels and the track system . the mutual effects cause tracks and grounds to be deformed , and engender crooked waves in the tracks . the deforming effects of grounds lead to vibration which spreads outwardly through soil layers
  列车运行时产生振动的机理是车轮与轨道系统的相互作用，这一作用引起轨道及地基的变形并在轨道内产生弯曲波，由于地基的变形所引起的波动通过土层向外传播。