交通系统环境振动评价问题的探讨

Discussion of Some Questions in Evaluating Environment Vibration Induced By Railroad Systems

通过对武汉市轻轨一号线一期工程环境振动的现场测试,研究轻轨对周边地面和邻近建筑物的振动影响。实测结果表明:高架轨道交通所引起的环境振动随着距轨道中心线距离增加而减小,但在建筑物地基附近存在振动放大现象;本底振动对总体振动的影响随着距轨道中心线距离增加也逐渐增大;对于多层建筑物,楼层越高,振动越强烈。

In this paper, the vibrations of ground and nearby buildings induced by the first urban elevated light-railway in Wuhan are studied by in-situ experimental method. The measured results show that the vibrations induced by traffic system attenuating with the distance to the railway tracks. There exists a vibration amplifying phenomenon near buildings foundation; the background vibration is stronger with the distance to the railway tracks. For multi-story buildings, higher floors vibrate more strongly than lower ones.