Rail deflection measurements on an operational mainline with asphalt-concrete trackbed layer

In 2016 a trial section was created on an operational mainline railway track. The trackbed in the section incorporated an asphalt-concrete trackbed layer with 70% of recycled asphalt concrete in the mixture. The purpose of the measurement presented in this dataset was to analyse the behaviour of the section before and after the construction. Two independent sets of data were collected for the analysis. First, a change in track geometry measured by Track Recording Vehicles passing through the section. Second, deflections of the bottom of rails under the load from passing trains at various points along the section. More details about the sets are presented in the description of the respective folders in which the data is uploaded (below).

2016年，一条运营中的干线铁路上设置了一段试验区段。该试验区段的道床采用了沥青混凝土道床结构，其混合料中再生沥青混凝土占比达70%。本数据集收录的测量数据，旨在分析该试验区段施工前后的力学行为表现。本次分析共采集了两组独立数据集：其一为通过该试验区段的轨道测量车（Track Recording Vehicle）采集的轨道几何形态变化数据；其二为沿该试验区段各测点处，列车荷载作用下钢轨底部的挠度数据。关于两组数据集的更多细节，请参见上传数据所对应的各文件夹说明（见下文）。