Foton Lovol engineering machinery participates in the construction of the world's Longest Undersea Tunnel
On the morning of August 2, the second tunnel project ceremony of Jiaozhou Bay was held in Qingdao West Coast new area. As the representative of the manufacturing enterprises in the territory, Lovol engineering machinery participated in the commencement ceremony with four excavators and two loaders, which helped the construction of the second Jiaozhou Bay Tunnel.
At the ceremony, two Lovol excavators wearing big red flowers dug the first shovel of soil at the exit of the second tunnel, opening the "era of double tunnels".
It is understood that the second Jiaozhou Bay Tunnel, as an undersea tunnel project connecting the main urban area of Qingdao and the West Coast new area, is located in the sea area of Jiaozhou Bay, Qingdao city. It is an important part of the "six horizontal and nine vertical" expressway network in the central urban area of Qingdao. The project starts from Huaihe East Road in Qingdao West Coast New Area in the West and is laid along Liugongdao road in the East. It crosses Jiaozhou Bay and lands near Qingdao port. It connects with the urban area on the East Bank of Qingdao at Haibo estuary. The total length of the main line of the project is 17.89km, of which the tunnel is 15.89km long (11.2km in the sea area + 4.69km in the land area); The main tunnel with two tunnels and two lanes and six lanes plus the intermediate service tunnel is adopted. The deepest point is 155 meters from the sea level. The excavation outer diameter of the shield section of the tunnel is 15.8 meters. The project is constructed according to the standard of urban expressway and class I highway. The design service life is 100 years, the safety level is class I, the seismic fortification intensity is 7 degrees, the design speed is 80 km / h, and the passing vehicles are mainly passenger transport, taking into account freight transport. In order to realize multi-level traffic flow of the tunnel, 1 Main + N auxiliary entrances and exits are set on both banks. The project adopts the combined construction method of drilling and blasting method and shield method. The estimated total investment of the project is 17.1 billion yuan and the total construction period is 72 months.
The reporter learned at the commencement ceremony that the second Jiaozhou Bay Tunnel will be a super project with the largest construction scale of subsea tunnel, the longest length of subsea highway tunnel and the highest construction complexity in the tunnel field in the world construction history. It will break through the world-class problems such as ventilation and disaster prevention of super long tunnels, large-scale fracture crossing of large-scale Cross-section Tunnels, sea docking of super large-diameter shield and drilling and blasting tunnel, and super large-diameter shield bearing super high water pressure, It will lead the future of the construction and development of the world's ultra long cross sea channel, and will also become the benchmark project of China's strategy of becoming a powerful transportation country in the new era and an important milestone in the field of engineering construction.
In the future, Lovol engineering machinery will continue to adhere to the brand concept of "intelligent Lovol • quality commitment", rely on the territorial advantages, long-term adhere to "customer-centric", focus on customer value, constantly create high-quality, reliable, efficient, energy-saving and quality products, and provide intelligent, systematic, all-round and multi-level intelligent construction solutions for global construction. Create user reputation with Lovol brand and create greater value for the society. eight
