On June 30, with the pouring of the last concrete, all 242 pile foundations of the main bridge of the National Highway 110 Dengkou Yellow River Bridge Project undertaken by CCCC Second Public Bureau were poured. It lasted 157 days, 10 days ahead of schedule. It marks that the project has officially entered the substructure construction stage, laying a solid foundation for the subsequent cushion cap construction and related process conversion.
The construction staff celebrated the completion of the pouring of the pile foundation of the main bridge of the Dengkou Yellow River Bridge Project on National Highway 110.
It is reported that the superstructure of the main bridge of the Yellow River Bridge at the mouth of the National Highway 110 adopts the corrugated steel web prestressed continuous beam bridge, and a total of 11 main piers of the main bridge are arranged, and the hole span is arranged as 85 + 10X130 + 85; each pier of the main bridge of the Yellow River Bridge adopts 22 pile foundations with a diameter of 1.8 meters and a pile length of 94 meters; and a group of pile foundations is formed as the basic structure of the bridge.
The project is located in the middle and upper reaches of the Yellow River, which belongs to the wandering riverbed, with an ultra-long pile foundation length, complex geological conditions, extremely high requirements for drilling equipment and drilling technology, and safety and quality risks such as hole collapse and buried drilling during the construction process. To this end, the project team strengthened scientific and technological research, ensured the quality of the project with the quality of human work, and used a special "sediment separator" hole cleaning equipment to clean the holes to ensure that the sediment was cleaned in place, and ensured the quality of the piles by ensuring the depth of the steel casing into the soil and using high-quality bentonite mud for wall protection. The project is scheduled to be completed and opened to traffic by the end of 2026.
Aerial photography of the construction site of the main bridge project of the Yellow River Bridge at Dengkou on National Highway 110.
After the completion of the project, it is of great significance to implement the planning and layout of the national highway network, improve the trunk road network of the Inner Mongolia Autonomous Region, improve the traffic capacity and service level of the regional trunk road network, help the development of tourism resources in the project area, fully implement the rural revitalization strategy, and promote the high-quality economic development along the Yellow River Basin.
Source: Prairie Cloud