Ground vibration from high-speed trains: Prediction and countermeasure
Ground vibration from high-speed trains: Prediction and countermeasure
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DOI：
10.1061/(asce)1090-0241(2000)126:6(531
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发表时间：
2000-06-01
影响因子：
3.9
通讯作者：
Zackrisson, P
中科院分区：
文献类型：
--
作者：
Kaynia, AM;Madshus, C;Zackrisson, P
本文概述了在瑞典南部的测试程序，测量的振动引起的基础和铁路路堤的高速列车，连同一个严格的数值模型，开发的预测路堤/地面响应。在该公式中，地面被模拟为层状粘弹性半空间，铁路路堤被模拟为由列车移动荷载激励的粘弹性梁。该模型采用Kausel-Roesset绿色函数计算地基-路堤接触面处的土体刚度矩阵，并将其与路堤的动力刚度矩阵组合。该解决方案是在频域中进行的，并且通过频率分量的傅立叶合成来导出运动的时间历程。大量的模拟列车引起的振动的地面条件和路堤参数在试验场，并与实测记录进行了比较。模拟同意以及测量，无论是在定性和定量方面。特别是，记录的列车速度超过140公里/小时的模拟再现的大地面变形。借助该预测模型，探讨了地面振动补救措施的有效性。
This paper outlines a test program in southern Sweden for measurement of the vibration induced in the Found and railway embankment by high-speed trains, together with a rigorous numerical model developed for the prediction of embankment/ground response. In this formulation the ground is modeled as a layered viscoelastic half-space, and the railway embankment is modeled as a viscoelastic beam excited by the moving loads of the train. The model uses the Kausel-Roesset Green's functions to calculate the soil stiffness matrix at the ground-embankment interface and assembles it with the dynamic stiffness matrix of the embankment. The solution is carried out in the frequency domain, and the time histories of the motions are derived through a Fourier synthesis of the frequency components. Numerous simulations of train-induced vibration are presented for the ground conditions and embankment parameters at the test site and compared with measured records. The simulations agree well with the measurements, both in qualitative and quantitative terms. In particular, the large ground deformations registered for train speeds exceeding 140 km/h an reproduced by the simulations. With the help of the prediction model, the effectiveness of a remediation measure for the mitigation of ground vibration is explored.