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Shifting Sands, Steady Tracks: China's Rail Challenge
28 Oct
Summary
- Railway bridge spans active desert over 30 meters high.
- Workers conduct daily inspections in extreme temperatures.
- Bridge supports vital rail link shortened by 1,100 km.
Railway maintenance crews in Northwest China are diligently working on the Shashangou Railway Bridge, a remarkable 10.6-kilometer structure rising over 30 meters above the desert floor. This bridge is unique as the only major railway bridge in China to cross an active desert.
The bridge traverses the Kumtag Desert, facing challenges from shifting sands, frequent sandstorms, and extreme temperature fluctuations. Maintenance teams, often young workers, must carry heavy tools and navigate the structure to perform daily inspections and repairs.
These dedicated professionals act as "specialist doctors" for the railway, diagnosing and rectifying subtle deviations in track gauge, alignment, and level. Such imperfections, caused by temperature changes and heavy train loads, can compromise safety, even on seemingly straight tracks.
Strict technical standards dictate that deviations exceeding specific millimeters require immediate correction within tight maintenance windows. The team's efforts ensure the smooth operation of trains, contributing to the efficiency of the Dunhuang-Golmud Railway. This line, operational since December 2019, has significantly reduced rail transport distances in Northwest China by approximately 1,100 kilometers.
