Long-distance energy pipeline pass under roads, subjecting them to repeated stress and posing pipeline safety problems. To simulate the effects of vehicles driving over energy transmission pipeline, this paper examines large-caliber buried pipelines in the suburbs. In this study, a mechanical action model of vehicle-soil-pipeline (VSP) interactions to transform the process of a vehicle driving into the dynamic process of a load changing with time in the specified area was created. The VSP model was used to analyze the influence of moving load and position on the structural characteristics of the pipeline section. An equivalent solution method with high precision and high calculation efficiency was proposed. The results showed that as the loading position approaches the pipeline or the load increases, the stress value at the top of the pipeline gradually exceeded the stress value at the bottom of the pipeline and became the area with the maximum stress value. The minimum stress location also changed from the lower half near the pipeline bottom (Point D-135°) to the upper half near the pipeline top (Point B-45°or Point H-315°). Using the polynomial fitting method, the stress values of the maximum points were equivalently converted. Under the premise of considering pipeline safety, the most suitable functional relationship for the moving load equivalent model was obtained.

长输能源管道在道路下穿行，反复受力，存在管道安全问题。为了模拟车辆在输电管道上行驶的影响，本文研究了郊区的大口径埋地管道。在这项研究中，建立了车辆-土壤-管道（VSP）相互作用的机械作用模型，将车辆行驶过程转变为指定区域内载荷随时间变化的动态过程。采用VSP模型分析了移动载荷和位置对管段结构特性的影响。提出了一种精度高、计算效率高的等效求解方法。结果表明，随着装载位置接近管道或负荷增加，管道顶部的应力值逐渐超过管道底部的应力值，成为应力值最大的区域。最小应力位置也从靠近管道底部的下半部分（点D-135°）变为靠近管道顶部的上半部分（点B-45°或点H-315°）。采用多项式拟合方法，对最大点的应力值进行等效转换。在考虑管道安全的前提下，得到了最适合移动载荷等效模型的函数关系。最小应力位置也从靠近管道底部的下半部分（点D-135°）变为靠近管道顶部的上半部分（点B-45°或点H-315°）。采用多项式拟合方法，对最大点的应力值进行等效转换。在考虑管道安全的前提下，得到了最适合移动载荷等效模型的函数关系。最小应力位置也从靠近管道底部的下半部分（点D-135°）变为靠近管道顶部的上半部分（点B-45°或点H-315°）。采用多项式拟合方法，对最大点的应力值进行等效转换。在考虑管道安全的前提下，得到了最适合移动载荷等效模型的函数关系。