On February 6, the workers of the Huangyuan Bridge and Tunnel Workshop of the Xining Public Works Section of China Railway Qinghai-Tibet Group carried out de-icing work in the Laohugou Tunnel. Laohugou Tunnel is located in Huangyuan County, Xining City, Qinghai Province, with an average altitude of 3,100 meters, due to the large temperature difference between day and night, every winter, the leaking groundwater is easy to freeze icicles and icicles in the tunnel, if the cleaning is not timely, it will bury hidden dangers for driving safety. In order to ensure the safety of driving during the Spring Festival, the staff of the Huangyuan Bridge and Tunnel Workshop of the Xining Public Works Section of China Railway Qinghai-Tibet Group increased the frequency of inspections, carried out de-icing work in a timely manner, and guarded the safety of Qinghai-Tibet Railway equipment. Photo by Xinhua News Agency reporter Zhang Long.
Photo by Xinhua News Agency reporter Zhang Long.
Photo by Xinhua News Agency reporter Zhang Long.
Photo by Xinhua News Agency reporter Zhang Long.
Photo by Xinhua News Agency reporter Zhang Long.
Photo by Xinhua News Agency reporter Zhang Long.
Photo by Xinhua News Agency reporter Zhang Long.
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