A numerical model for re-radiated noise in buildings from underground railways

被引：8
作者：
Fiala, P. [1 ,2 ]
Gupta, S. [2 ]
Degrande, G. [2 ]
Augusztinovicz, F. [1 ]
机构：
[1] Budapest Univ Technol & Econ, Acoust Lab, Magyar Tudosok Korutja 2, H-1117 Budapest, Hungary
[2] Katholieke Univ Leuven, Leuven, Belgium
来源：
NOISE AND VIBRATION MITIGATION FOR RAIL TRANSPORTATION SYSTEMS | 2008年 / 99卷
关键词：
VIBRATIONS;
D O I：
10.1007/978-3-540-74893-9_16
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
A numerical prediction model is developed to quantify vibrations and re-radiated noise due to underground railways. A coupled FE-BE model is used to compute the incident ground vibrations due to the passage of a train in the tunnel. This source model accounts for three-dimensional dynamic interaction between the track, tunnel and soil. The incident wave field is used to solve the dynamic soil-structure interaction problem on the receiver side and to determine the vibration levels along the essential structural elements of the building. The soil-structure interaction problem is solved by means of a 31) boundary element method for the soil coupled to a 313 finite element method for the structural part. An acoustic 31) spectral finite element method is used to predict the acoustic response. The Bakerloo line tunnel of London Underground has been modelled using the coupled periodic FE-BE approach. The free-field response and the reradiated noise in a portal frame office building is predicted.
引用
收藏
页码：115 / +
页数：2
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