Will Wind–Sand Activity Bury the Opencut Tunnel along the Linhe–Ceke Railway, China?

The opencut tunnel is a kind of linear arch construction and new sand-prevention structure. In order to clarify the wind-proof mechanism tunnel, this paper seeks answer question whether Lin–Ce railway will be buried. paper, wind experiment combined with field investigation testing used systematically study sand resistance in an it verified burial possible. results show that airflow greater than 0.7 times height state acceleration uplift, no sand-filling phenomenon occurs at ventilation vent top tunnel. More 85% sediment transport on windward side was within 0–10 cm, 80% leeward concentrated 30–70 cm; angle between direction, higher potential resistance. past 20 years, mass accumulation shifting occurred along Furthermore, could not bury small-scale time range. Wind-field characteristics determine direction as 75°−90°, setting optimal scope protection. However, different angles can effectively prevent control flow hazards railways, ensuring smooth operation.