地下管线在维系现代城市功能和区域经济功能中起着举足轻重的作用。相对于理论研究,地下管线抗震性能的试验研究仍较少。以两个相同设计的层状剪切砂箱模拟土体的边界条件,通过基底输入,分别对地下管线在非一致激励下的动力响应规律进行试验研究。试验中改变管径及管线埋深,调整基底输入的频率和振幅,以考察多种因素的变化对管土相互作用的影响。 Underground pipelines play a decisive role in maintaining modern urban functions and regional economic functions. Relative to the theoretical study, there are still few experimental studies on seismic performance of underground pipelines. The boundary conditions of soils are modeled by two same-layered shear sand boxes. The dynamic responses of underground pipelines under non-uniform excitation are experimentally studied through the input of the substrate. In the experiment, the pipe diameter and pipeline depth were changed, and the frequency and amplitude of substrate input were adjusted to examine the influence of many factors on the soil-soil interaction.