Tianshan Shengli Tunnel seizes the "golden period" of spring construction and will be fully completed by the end of the year. It is the longest highway tunnel under construction in the world.
The tunnel adopts the "three holes + four shafts" construction method, that is, the left and right main holes are constructed using the drill and blast method. After the tunnel is completed, it will only take about 20 minutes to drive through the Tianshan Mountains.