郑西高速铁路渭南北高架车站环境振动测试分析

Test and Analysis of Environmental Vibration of Weinan North Elevated Station of Zhengzhou-Xi'an High-speed Railway

振动是高速铁路高架车站运营期的主要环境污染。为考察300 km/h高速列车运行状态下高架车站的环境振动水平,对我国第一座投入使用的高速铁路高架车站—郑西高速铁路渭南北站候车室内外、车站郑州端内部以及车站外高架桥的环境振动水平进行测试,初步分析高架车站环境振动的特点。结果表明,车站内环境振动的垂向振级大大高于水平向振级,车站内的环境振动水平远低于车站外的环境振动水平,渭南北高架站所采取的减振措施是有效的。

Vibration is one of main forms of the environmental pollutions of elevated station for high-speed railway. In order to investigate the environmental vibration level of elevated station of high-speed train at 300 km/h in operation, the environmental vibration were tested and preliminarily analyzed in four different positions in and near Weinan north elevated station of Zhengzhou-Xi＇ an high-speed railway, which is the first elevated station in operation for high-speed railway in China. The result shows that the vibration level in the vertical direction is much higher than the vibration level in the horizontal direction, and the vibration level in the station hail is much lower than that of viaduct bridge outside the station. The vibration reduction measures of Weinan north elevated station are very effective.