2016年1月19日。寒风呼啸,北京铁路局北京西工务段云彩岭线路车间招柏工区周围山坡上的雪还未完全化掉。孙镇集合起工区的7名工友,点名、班前预警、进入隧道打冰。这条隧道是云彩岭隧道,地处京原线217公里处,四周环山,全长3821.1米。冬季温度降低,加上当地地势处于太行山脉与黄土高原交界处,降水量偏多,山体蓄水也随之增多。因此,在隧道内,冬季会出 January 19, 2016. The whistling winds, the Beijing Railway Bureau Beijing West Railway Station Lingyun Ridge Workshop on the slopes around the snow has not yet completely out. Sun Town set from the work area seven workers, named, class warning, into the tunnel to fight ice. This tunnel is Cloud Ridge Tunnel, located 217 kilometers from the original Beijing line, surrounded by mountains, a total length of 3821.1 meters. In winter, the temperature is lower, and the local topography is at the junction of the Taihang Mountains and the Loess Plateau, with more precipitation and more mountain water storage. Therefore, in the tunnel, winter will be out