期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：304
期号：4
页码：1-7
DOI：10.1088/1755-1315/304/4/042004
出版社：IOP Publishing
摘要：In order to study the vibration characteristics of railway piers and different foundation sites in seasonal frozen soil region under train load, the piers and foundation sites of Tieling-Siping of Harbin-Dalian high-speed railway were tested on site, and the vibration attenuation characteristics of different sites and different seasons were analysed using numerical simulation method. The results show that the vibrations in the Y and Z directions are amplified on the side of piled soil-filling in both freezing and non-freezing seasons, when the distance R from the bottom of pier is less than 0.8m. But the vibration is amplified only in Z direction on the side of non-piled soil-filling. In the freezing season or in the non-freezing season, when R is between 1 and 2m, the vibration attenuation speed on the side of piled soil-filling is obviously lower than that on the side of non-piled soil-filling. When R is larger than 3m, the vibration attenuation of three directions is not affected by the piled soil-filling or not. Whether on the side of piled soil-filling or non-piled soil-filling, the vibration attenuation speed in freezing season is lower than that in non-freezing season.
