A water gushing occurred in a high-speed tunnel in Guizhou, and traffic police say they are evaluating the cause. The tunnel was once a research case due to its complex geology

A water gushing occurred in a high-speed tunnel in Guizhou, and traffic police say they are evaluating the cause. The tunnel was once a research case due to its complex geologyOn July 9th, in Renhuai, Guizhou, the walls of the Tanchang Tunnel on the Zunchi Expressway leaked water, causing multiple streams of water to spray out, attracting the attention of many netizens

A water gushing occurred in a high-speed tunnel in Guizhou, and traffic police say they are evaluating the cause. The tunnel was once a research case due to its complex geology

On July 9th, in Renhuai, Guizhou, the walls of the Tanchang Tunnel on the Zunchi Expressway leaked water, causing multiple streams of water to spray out, attracting the attention of many netizens. A live video shows that relevant department personnel have been handling the situation on site. Among the two lanes, one with more accumulated water is temporarily closed with a roadblock, while the other lane is gradually being driven by vehicles.

According to the public website, on July 10th, the local traffic police responded that the water leakage situation was being addressed. "There were two lanes in the tunnel, and one was closed at the time, allowing vehicles to pass. Relevant department personnel were present to handle the situation

A reporter from Xiaoxiang Morning News noticed that many netizens are concerned about the leakage situation at the tunnel site. "The water spraying like this indicates that the pressure is already high, and the site should be sealed first, which is obviously improper operation." "If it is a quality hazard, this kind of water gushing is very dangerous. Evacuate, close, monitor and observe, and hand over to a professional engineering company for handling

On July 11th, a staff member of the on-site construction company told the Xiaoxiang Morning Post that the leakage situation at the site had been resolved.

The reporter also learned from the Traffic Police Brigade of Zunyi Chichi Expressway in Zunyi City that "the water gushing out has been handled, and now normal traffic has resumed, and the accumulated water has also been handled." As for the cause of the water gushing in the tunnel, the staff said that it is still under evaluation.

The reporter from Xiaoxiang Morning News noticed that the Tanchang Tunnel project was once studied as a special case due to complex geological conditions.

For example, in 2010, the Journal of Sichuan Architectural Science Research published an article about the Tanchang Tunnel Project. The author was Liao Xiangyuan from the Guizhou Provincial Traffic Construction Engineering Quality Supervision Station and Xiao Qihang from the School of Civil Engineering of Southwest Jiaotong University.

Taking Tanchang Tunnel as an example, this paper collects and collates the data of natural geographical environment, engineering geological conditions, hydrogeological conditions, etc. in Tanchang Tunnel area in detail, summarizes the typical engineering geological and hydrogeological characteristics of Guizhou, and conducts analysis and research on this basis.

The article mentions that the Tanchang Tunnel is located in the northern mountainous area of Guizhou, with faults passing through the tunnel area, including rock piles, soft rocks, dangerous rock zones, gas, karst, weak rock zones, fractured zones, water-bearing strata, coal seams, etc. Poor geological conditions can easily cause tunnel collapse, mud outburst, and water gushing, posing great technical difficulties for tunnel construction, and special treatment measures must be taken to deal with them. In view of the engineering geological characteristics of Tanchang Tunnel, this paper analyzes many engineering measures such as Structural engineering of tunnel body, tunnel waterproof and drainage engineering, karst section treatment, water gushing section treatment, soft shallow buried section of portal, coal seam gas section, etc.

Xiaoxiang Morning News reporter Wu Chen Xingzi intern Zhang Ruizhi

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