Erlangshan Tunnel is located in Luding County, Ganzi Prefecture, Sichuan Province, Bridge No. 3 Longdanxi, east, dry Haizi Mountain, which crosses Erlang Mountain, west to Betuo Tunnel, with a total length of 4176 meters and a depth of 748 meters. The two-way two-car shows the third-level road, with an altitude of 2,200 meters. The investment of 5.4 billion yuan began construction in 1996 and opened to traffic in 2001. At that time, it was the longest, deepest buried, highest altitude, maximum ground stress and longest construction period of special mountain road tunnel. The tunnel is constructed using the new Austrian method and composite lining, overcoming rock explosion, large deformation, collapse slope accumulation, dark river, karst lot, and won the "Fourth Zhan Tianyou Civil Engineering Award" and the "Luban Award" of the National Building Quality Engineering in 2004.
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Erlangshan Tunnel is located in Luding County, Ganzi Prefecture, Sichuan Province, Bridge No. 3 Longdanxi, east, dry Haizi Mountain, which crosses Erlang Mountain, west to Betuo Tunnel, with a total length of 4176 meters and a depth of 748 meters. The two-way two-car shows the third-level road, with an altitude of 2,200 meters. The investment of 5.4 billion yuan began construction in 1996 and opened to traffic in 2001. At that time, it was the longest, deepest buried, highest altitude, maximum ground stress and longest construction period of special mountain road tunnel. The tunnel is constructed using the new Austrian method and composite lining, overcoming rock explosion, large deformation, collapse slope accumulation, dark river, karst lot, and won the "Fourth Zhan Tianyou Civil Engineering Award" and the "Luban Award" of the National Building Quality Engineering in 2004.
Driving through the Erlang Mountain Tunnel is really an eye-opener. This tunnel is called the first tunnel in Sichuan and Tibet. The total length has actually reached 13.4 kilometers. It is really shocking! It's beautiful inside!
Erlang Mountain is the first mountain to be crossed by National Highway 318 on the southern Sichuan-Tibet line. After Erlang Mountain, you will reach Ya'an. This section has now been repaired at high speed. A tunnel can cross Erlang Mountain. The road conditions of this section of the national road are not very good.
Complex geological conditions, this tunnel is not easy to repair
A song of "singing Erlang Mountain" built into Tibetan highway officers and soldiers made people know Erlang Mountain, and also know the steep high road of Erlang Mountain, and people's desire to cross the sky to the mountain. Now, a tunnel can cross the first mountain on the Sichuan-Tibet line in five minutes. Lutong Caitong, Ganzi is full of hope.