高速列车引起的地基土振动研究综述

A Review on Ground Vibration Induced by High-Speed Train

对高铁所引起的地基土振动的研究已有20多年历史了,随着新一轮高铁兴建浪潮的兴起,高铁所引起的环境振动污染备受关注,有必要对前人的研究成果进行系统总结。对地基土振动进行现场实测要遵循恰当的过程和方法,才能保证实测数据的可靠性。在数据分析前,需要对数据进行背景压缩和滤波等必要的预处理。对数据的分析,建议采用"三分之一倍频有效振级谱"的方法,该方法可以实现对振动数据的全面分析。文中还总结了已有研究得到的地基土振动特性,并提出了需要进一步深入研究的问题。

Researches on ground vibration induced by high-speed train have been studied for more than 20 years. With another upsurge of constructing high-speed railway, more and more people are con- cerned about the environmental vibration problems caused by high-speed train. So, it is necessary to summarize the results of the former researches systematically. The field test of the ground vibration must be carried out under proper process to ensure the quality of the data. Data pretreatment is necessa- ry before data analysis. ＂1/3 octave valid vibration level spectrum＂ is recommended to process the data analysis. The characteristics of the ground vibration can be fully analyzed using this method. The main characteristics of the ground vibration are also concluded in this article. Finally, some analysis recom- mendations and further studies are proposed.