en.Wedoany.com Reported - On May 31, the Taojia Tunnel in Chongqing officially opened to traffic. This key livelihood transportation project, constructed by CCCC Third Harbor Engineering Co., Ltd., is now fully operational, marking the complete connection of the Fifth Horizontal Expressway in western Chongqing's main urban area and ushering in a new upgrade for regional transportation.
The Taojia Tunnel spans a total length of 13.5 kilometers, linking the Jiulongpo and Dadukou districts. It starts from the First Vertical Expressway in Jiulongpo District, traverses the Zhongliang Mountains, passes through Taojia Town, Tiaodeng, Xiaonanhai, and other areas, and finally connects to the Liwan Interchange on the Second Vertical Expressway in Dadukou District. The second section, constructed by CCCC Third Harbor Engineering Co., Ltd., covers 6.37 kilometers and includes a tunnel, multiple bridges, and two interchange bridges, making it the most challenging and technically demanding segment of the entire route.
The project passes through the Zhongliang Mountains, where geological conditions are complex. The construction site features a crisscross of karst caves, underground rivers, and abandoned mined-out areas, accompanied by hazardous gases such as methane and hydrogen sulfide, along with unstable surrounding rock structures, increasing construction difficulty and safety risks. Through specialized research, the project team innovatively applied targeted comprehensive treatment construction techniques, effectively solving various problems in tunnel construction in water-rich karst areas and breaking through multiple industry technical bottlenecks.
Throughout the construction process, the contractor adhered to the principles of green and safe construction, striving to create a benchmark project for civilized practices. Environmental protection measures such as enclosed barriers, full coverage of bare soil, regular spray dust suppression, and real-time dust monitoring were strictly implemented on site to reduce construction dust pollution at the source and protect the regional ecological environment. Meanwhile, the project established a smart construction site management platform, leveraging digital tools such as intelligent monitoring, real-time dispatching, and online inspections to achieve comprehensive, no-blind-spot supervision of the construction site, significantly enhancing the level of refined management.
With the opening of the Taojia Tunnel, the regional road network's shortcomings have been addressed, greatly optimizing the transportation layout of western Chongqing's main urban area and making travel more convenient and efficient for local residents. The completion of this new transportation artery will effectively empower the high-quality development of the Western (Chongqing) Science City and the Chongqing International Logistics Hub, injecting continuous new momentum into the construction of the Chengdu-Chongqing Economic Circle.
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