Historical Subgrade Defects in China's High-Speed Railways, 1999-2023

From 1999 to 2023, Jinchen Wang compiled a georeferenced dataset of historical subgrade defects from peer-reviewed literature in China. The dataset includes records for eight defect types across 661 locations, categorized from province to township scales. It provides a map of issues like subgrade settlement, frost damage, uplift deformation, and mud pumping.

Use Cases

• Operational risk assessment based on historical defect locations and types
• Prediction of subgrade performance based on patterns of common defects like settlement and frost damage
• Spatial analysis of defect distribution across provinces and townships
• Comparative study of defect frequency and type across different geographical scales

Strengths

• Covers a 24-year time span from 1999 to 2023
• Georeferenced records span 661 distinct locations
• Includes eight different defect types, with the most common explicitly named
• Data sourced from peer-reviewed literature, including journal articles, conference papers, and theses

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data may reflect publication bias inherent to the academic literature source

Provenance

Source

Jinchen Wang

Collection Method

Extracted from peer-reviewed literature published in China, including Chinese and English journal articles, conference papers, and theses.

Time Range

1999-2023

Geography

China, with locations categorized from province to township scales.