The right hole of the River High -speed Wozigou Tunnel along the river

On the morning of July 1st, the right hole of the Wozigou Tunnel of the Special Tunnel of the Jinyang Section of the Yangtze River Expressway to the Jinyang section was successfully connected, marking that the construction of the high -speed project along the Yangtze River has achieved breakthrough progress again! The tunnel is expected to achieve a double -range in August this year, and it is planned to be opened to traffic in 2025.

The Wozigou Tunnel is located in Dexi Town, Jinyang County, Liangshan Prefecture. It is a separate small net distance tunnel. The left line of the tunnel is 3483 meters long and the right hole is 3478 meters long. It is designed as a two -way four -lane and 80 kilometers per hour. The tunnel is in the transition zone of the Sichuan Basin to the Yunnan -Guizhou Plateau. It mainly crosses the horizontal mountainous area in the northern part of the Yunnan -Guizhou Plateau. It is parallel to the Jinsha River.

The geological conditions of the tunnel are extremely complex. The tunnel surrounding rocks are mainly IV and V -level, of which IV enclosure accounted for 59.38%, and the proportion of V -Class surrounding rocks reached 40.62%. Extremely high. In response to the complex geological conditions of the Wozigou Tunnel, the construction difficulties such as the crushing of the surrounding rock, the poor self -stability capacity, and the large amount of water volume, the project team sorted out the problems one by one, and accurately applied the policy. , Diligence, dynamic changes, early closed, and synchronized on -site control measures. At the same time, under the scientific guidance of the Yangtze River and the Zhou secret deployment of all parties, the construction tasks were completed within 20 months, and the "three zero" goals of "zero safety accidents, zero quality accidents, and zero pollution accidents" were achieved.

The Wozigou Tunnel is connected to Dexi Town to Luojue Town, and the traffic time of Jianjue to Luojue Town will be shortened from 50 minutes to 10 minutes. To 4.5 hours.

Chengdu Daily Jinguan Journalist Tian Chengchen Editor He Qixie Editor Liu Yonghao

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