周期性层状隔振屏障影响参数分析

Analysis of Influence Parameters on Periodic Vibration Isolation Barrier

随着城市轨道交通的蓬勃发展和减振需求的不断提高,轨道减振措施的局限性及环境振动超标问题越来越凸显。文章考虑地铁近场地层的振动传播特性,基于ANSYS软件对周期性层状隔振屏障进行仿真分析,研究了周期性层状隔振屏障结构的桩长、桩间净距、桩材料、屏障距楼距离等不同参数对其减振效果的影响,并分析了多种参数组合时屏障的隔振效果。

With the rapid development of urban rail transit and the increasing demand of vibration reduction, the limitation of rail vibration reduction measures and the negative effects on the wheel/rail interfaces are becoming increasingly prominent. The paper takes into consideration of the influence of the near ground layer on vibration propagation, simulates the periodic layered isolation barrier with the ANSYS software, and studies the influence from different parameters such as pile length, pile spacing, distance from building, pile material, etc. It provides some reference for studies of the rail transit isolation measures in the future.