Spatial Distribution of Subgrade Defect Occurrence​s in China’s High-Speed Railways​

This is a comprehensive georeferenced dataset that encompasses defect records extracted from peer-reviewed literature published between 1999 and 2023 in China. Our investigation includes both Chinese and English journal articles, conference papers, and dissertations. Rigorous quality control procedures were implemented to eliminate duplicate data and ensure the accuracy of the dataset. The resultant dataset consists of georeferenced records for eight different defects, spanning across 661 locations and categorized at various scales, ranging from provinces to townships. This new dataset provides an up-to-date map of subgrade defects affecting high-speed railways in China. It could serve as a valuable resource, facilitating subsequent operational risk evaluations and the prediction of subgrade performance.

本数据集为地理空间参考数据集（georeferenced dataset），收录了1999年至2023年间中国境内发表的同行评议文献中的缺陷记录。本次调研涵盖中英文期刊论文、会议论文及学位论文。研究团队实施了严格的质量控制流程，以剔除重复数据并保障数据集的准确性。最终生成的数据集包含8类不同缺陷的地理空间参考记录，覆盖661个点位，并按从省级到乡镇级的多级空间尺度进行分类。本数据集可为中国境内受影响高速铁路的路基缺陷提供最新的空间分布图谱，可作为极具价值的研究资源，助力后续开展运营风险评估与路基服役性能预测工作。