If you want to get rich, build roads first. The construction of transportation connectivity has always been one of the key factors restricting Serbia's trade exchanges. On April 11, 2023, the PP section of the E763 highway project in Serbia, which was constructed by China Communications Construction and participated in the construction of the Second Public Bureau of China Communications, a central enterprise in Shaanxi, held a breakthrough ceremony for the left hole of the Raz Tunnel. After the right hole was completed, the project ushered in another major node. So far, the longest expressway tunnel in Serbia has achieved double penetration.

The Raz Tunnel is an important part of Serbia's E763 highway. After the project is completed, it will greatly improve the traffic conditions in southern Serbia and further improve the interconnection of the country's transportation network. The right hole of the Raz Tunnel is 2662.33 meters long, and the left hole is 2842.56 meters long. The tunnel is dominated by grade IV/V surrounding rock, accounting for as high as 80.1%. The complex and fragile geological surrounding rock brings great challenges and pressures to the production and construction of the project.

It is understood that since the project entered the site, it has overcome geological disasters such as fault fracture zones and tunnel water gushing, and has used the compact special excavator for tunnels in the control of tunnel over-underbreak and shotcrete over-square control, and has successfully applied self-propelled pipe shed drilling Hole installation method. The project has always adhered to safe production and steady construction. Through its solid professional foundation and good team style, it has demonstrated the image of CCCC in Serbia and created a dazzling business card.

The smooth completion of the two tunnels of the Raz Tunnel is not only a major achievement in Serbian highway construction, but also a model of cooperation between China and Serbia in the field of infrastructure construction. The brand effect of CCCC in Serbia and even the whole of Europe. Editor/Xu Shengpeng