This paper presents a comparative analysis of ground vibration in three directions generated by a heavy-duty railway with various track sections. The vibration characteristics in the plane area were investigated by using matrix test measurements. Acceleration peak attenuation was faster within 25 m from the embankment, and the high-frequency vibration attenuates faster with increased distance. For the cutting section with multi-stage soil slope, decay rate of acceleration was relatively larger. The acceleration level of the plane region ranged to 82.2–89.1 dB by the single C80 train. Yet the acceleration level caused by the C80 trains running parallel after meeting showed a distinct increment. The increment of the cutting section was much larger compared with the embankment section, with the increment ranging from 1.2–2.5 dB. In terms of the cutting section, Y direction acceleration was dominant closer to the track. Within 10–30 m of the track, the Y direction acceleration (perpendicular to the rail) decreased rapidly and became comparable to the X direction (parallel to the rail) and Z direction. Additionally, the cutting case generated a higher level of vibration in all three directions compared to the embankment, but as the distance from track increased, the deviation between acceleration gradually decreased.

本文对具有不同轨道断面的重载铁路在三个方向产生的地面振动进行了比较分析。通过使用矩阵测试测量来研究平面区域的振动特性。距路堤25 m内加速度峰值衰减较快，高频振动随距离增加衰减较快。对于多级土坡切割段，加速度衰减率相对较大。单列 C80 列车对平面区域的加速度水平范围为 82.2-89.1 dB。而C80列车在相遇后平行运行引起的加速度水平显示出明显的增量。与路堤段相比，截断段的增量要大得多，增量范围为1.2-2.5 dB。Y方向加速度在靠近轨道的地方占主导地位。在轨道的 10-30 m 内，Y方向加速度（垂直于轨道）迅速下降，变得与X方向（平行于轨道）和Z方向相当。此外，与路堤相比，切割工况在所有三个方向上都产生了更高水平的振动，但随着距轨道距离的增加，加速度之间的偏差逐渐减小。