The project in brief

When the G85 Yu Kun Expressway going through Chongqing in the Kunming Province required two tunnels through a massive mountain rock (Dakouzi Tunnel and Qiujiayakou Tunnel), the TUNPROTEC® system was the go-to solution.
The TUNPROTEC® system allowed for fast installation within the tunnel and the small dimensions of the system components ensured an unobtrusive means of protecting the tunnel from fires.

The G85 Yu Kun Expressway is part of the 5th longitudinal high standard road of the China expressway network. Yu Kun Expressway strethes 543 km in the Kunming and Yunnan Province.

Why was a VID Fire-Kill solution chosen?

In the full scale tests the results showed that the system would:

Significantly reduce the size and the extend of the gallery/emergency escape tunnel due to the installation of the watermist system.

Back layer could be controlled with a smaller scale forced ventilation system.

ROI (Return of Investments) calculations showed neutral or even savings, but most importantly it created improved opportunities to save lives and protection of assets without significant additional costs.


Products used for this case

Low Pressure Watermist Tunnel Fire Protection System


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