The first tunnel of Yilongqing Expressway has been double-sided pierced.

Today, the first tunnel of the Yilongqing Expressway, the Daqiutian Tunnel, has been fully completed. It is understood that this project has created a new intelligent construction model for mountain tunnels that integrates "intelligent blasting + safety control + efficiency improvement + ecological protection." In the future, after the completion and opening of the Yilongqing Expressway, the distance from Longquan to Hangzhou, Yiwu, and other places will be shortened by nearly 60 kilometers, injecting strong momentum into the integration of mountain and sea development in southwestern Zhejiang.