Liangshan, Sichuan: The right hole of the Wozigou Tunnel of the high speed along the river goes smoothly

Cover Journalist Gou Chun

On the morning of July 1st, the right hole of the Wozigou Tunnel of the Yibin to Jinyang Section Tunnel of the River Highway to Jinyang section, which was invested by Shu Dao Group, successfully opened up the right hole of the Wozigou Tunnel, marking the breakthrough progress of the construction of the high -speed project along the river. 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 right line of the River High -speed Wozigou Tunnel runs through the right line. Shu Dao Group Pictures

It is understood that 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. 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%. high.

In response to the complex geological conditions of the Wozigou Tunnel, the crushing of the surrounding rocks, the poor self -stability capacity and the large amount of water volume, the project team has formulated "soft and short, pumping, prediction, strengthening, dynamic measurement, dynamic change, dynamic change, dynamic change, dynamic changes, dynamic changes, dynamic changes, dynamic changes On -site control measures with the principles of closure and synchronization. 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.

It is understood that 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. 8 hours shortened to 4.5 hours.

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