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Experimental study of ground vibrations induced by Brussels IC/IR trains in their neighbourhood

机译：布鲁塞尔IC / IR列车在其附近引起的地面振动的实验研究

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摘要

In this paper, railway-induced ground vibrations are analysed experimentally with the aim of addressing questions raising from the planning of a new RER network, available in the near future in order to alleviate pollution and the traffic jams. Free field ground vibrations are measured during the passing of InterCity and InterRegion trains. Various sites along the main line L161 Brussels-Luxembourg are chosen and investigated, with specific differences about the track and soil configurations. In order to compare these results with numerical ones, a deep dynamic characterisation of the track, the soil and the train is first performed. The analysis of horizontal and vertical ground vibrations measured during the passage of domestic trains (AM96, AM86, AM80, AM75, HLE27/M4 or M5) at various speeds (from 40 to 120 km.h~(-1)) is then presented. The results show that the ground vibration amplitude depends on various factors: soil configuration, train type and speed, direction of measurement, track quality. In a particular case, a local defect (rail joint) induces large deformations of the soil.
机译：在本文中，对铁路引起的地面振动进行了实验分析，目的是解决在不久的将来推出的新RER网络的规划中提出的问题，以减轻污染和交通拥堵。在InterCity和InterRegion火车通过时测量自由场的地面振动。沿着L161布鲁塞尔-卢森堡主干线的各个地点进行了选择和调查，在轨道和土壤构造方面存在特定差异。为了将这些结果与数值结果进行比较，首先对轨道，土壤和火车进行了深入的动态表征。然后介绍了在各种速度（从40到120 km.h〜（-1））的家用火车（AM96，AM86，AM80，AM75，HLE27 / M4或M5）通过时测得的水平和垂直地面振动的分析。 。结果表明，地面振动幅度取决于多种因素：土壤构造，列车类型和速度，测量方向，轨道质量。在特定情况下，局部缺陷（铁路接头）会导致土壤变形。

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