On the morning of July 5, the first blasting of the Tianyuanwu Tunnel of the Zhuji Baida Line Project in Zhejiang was successfully completed, marking that all tunnels along the project have achieved blasting and tunnel entry, and the project progress has entered the "fast lane."

Photo provided by Zhejiang Communications Group

The Tianyuanwu Tunnel is located in the Zhuji Baimen to Daluyang Highway Project (hereinafter referred to as the Zhuji Baida Line Project), a provincial key transportation project that advances the rapid connection between the main urban area of Zhuji and Hangzhou. Upon completion, the project will form a rapid connection between the main urban area of Zhuji and the main urban area of Hangzhou, and through traffic interchange with Hangzhou's "Five Horizontal" roads, "Middle Ring," and "First Ring," will comprehensively promote the integrated development of Zhuji's integration into Hangzhou.

To ensure the successful completion of the first blasting of the Tianyuanwu Tunnel, the construction contractor organized multiple safety and technical briefing meetings, conducted targeted training for relevant work teams, and proactively communicated and coordinated with relevant local government departments and responsible persons of the blasting company to ensure the smooth completion of the blasting work.

It is reported that the Tianyuanwu Tunnel is a small-clearance tunnel, with a left tube totaling 585 meters and a right tube totaling 590 meters; it is a medium tunnel with one pedestrian passage. The tunnel is located in an erosional-denudational mid-to-low mountain area with large topographic relief, mostly exposed bedrock, and thin layers of gravelly silty clay scattered on the slope surface. The mountain undulates greatly, with elevations between 73 and 160 meters and a relative height difference of 87 meters. The tunnel is driven one-way from the exit to the entrance, and the right tube was the advance tube for this blasting. In addition, the other two tunnels of the project have both entered the peak construction period. As of now, the left tube of the Yingdianjie Tunnel has been driven 224 meters into the tunnel, and the right tube 126 meters. The left tube of the Dashiwu Tunnel has been driven forward 142 meters, and the right tube 70 meters.

Next, on the premise of ensuring safe production, the project will further optimize the construction plan and continuously improve work efficiency. At the same time, it will seize the construction schedule and go all out to sprint toward the annual overall construction target.