中文摘要：

在一个季节传递火车引起的路基的颤动特征和变细结盟 Daqing 的冻结的区域，中国被调查。三个地实验整个一年在不同时间期间被进行，在正常，分别地，冻结并且融化时期并且季节，火车速度和火车类型的影响，在这篇论文被描述。结果显示出那：(1 ) 垂直部件在栏杆课程附近的测量颤动的三个部件之中是最大的，并且当到铁路课程的距离增加，主导的颤动取决于季节。(2 ) 与在正常时期的颤动相比，当侧面的颤动在结冰时期减少时，垂直、纵的颤动增加。在融化的时期，然而，垂直、纵的颤动减少，和侧面的颤动增加。(3 ) 当火车加速增加，路基颤动增加。(4 ) 一列货船火车导致的颤动比由一辆客车大。这些观察提供颤动和路基的动态稳定性的更好的理解并且可能在在冷区域为铁路和大楼建设开发标准有用。

英文摘要：

The vibration characteristics and attenuation of the subgrade caused by passing trains in a seasonally frozen region of Daqing, China are investigated. Three field experiments were conducted during different times through the year, in normal, freezing and thawing periods, respectively, and the influence of the season, train speed and train type, is described in this paper. The results show that： （1） the vertical component is the greatest among the three components of the measured vibration near the rail track, and as the distance to the railway track increases, the dominant vibration depends on the season. （2） Compared with the vibration in the normal period, the vertical and longitudinal vibrations increase while the lateral vibration decreases in the freezing period. However, in the thawing period, the vertical and longitudinal vibrations decrease, and the lateral vibration increases. （3） As train speeds increase, the subgrade vibration increases. （4） The vibration induced by a freight train is greater than by a passenger train. These observations provide a better understanding of the vibration and dynamic stability of the subgrade and may be useful in developing criteria for railway and building construction in cold regions.