China News Service, Beijing, December 8 (Reporter Zhou Yin) The reporter learned from China Railway Corporation Limited on the 8th that with the smooth pouring of the last pile foundation a few days ago, it marked the general contract of China Railway National Highway 109 New Line Expressway. The construction of the pile foundation of Yanchi Interchange in Buliu Industrial Zone has been completed.
Construction Site.
Photo courtesy of China Railway
According to reports, the Yanchi Interchange includes the main line bridge and 5 ramp bridges, including 17,856 cubic meters of concrete and 1,530 tons of steel.
Since the construction of the first pile on September 24, 2020, the project department has optimized the construction technology and strengthened process control to ensure the safe, efficient and orderly progress of the bored pile construction, and successfully completed the construction and production tasks of the Yanchi Interchange pile foundation.
Up to now, the construction is progressing smoothly. On November 1st, the largest 10kv cable relocation that restricted the construction of the Yanchi Overpass was completed. The three-link cast-in-place box girder was completed within 10 days of the same month, and the cast-in-place box girder has been completed more than 40%.
The main structure of the bridge section of ramp B and C has been completed.
The first pile of Huangyangou Bridge has been completed, and construction started half a year earlier than originally planned.
All three tunnels have achieved more than half of the footage, and the left line of the tunnel is expected to be completed within this year.
Construction Site.
Photo courtesy of China Railway
National Highway 109 New Line Expressway is the first expressway in Mentougou, Beijing. It is currently the single mountain expressway project with the longest mileage, the largest project scale, and the highest investment amount in Beijing.
After the completion of the project, it will greatly alleviate the traffic pressure in the west of Beijing, which is of great strategic significance to enhance the vitality of regional economic growth and promote the integration of Beijing-Tianjin-Hebei transportation.
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