the End of Heat, all localities continued to promote the construction of major projects. Reporters learned that with the steady progress of construction, a number of high-speed rail projects have made new progress.
In Inner Mongolia, with the completion of the pouring of Pier No.1, the substructure of Shadongqing Bridge on Yinba Branch Line of Baoyin high-speed rail, which was constructed by the 15th Bureau of China Railway, was successfully completed, marking a major stage achievement in the construction of the bridge and laying a solid foundation for the construction of the superstructure and girder erection of the bridge.
According to Han Wei, the project manager of the 15th Bureau of China Railway, the Shadongqing Bridge is 1953 meters long and is the longest bridge in Inner Mongolia section of Yinba Branch Line of Baoyin high-speed rail. In order to effectively protect the endangered plant Ammopiptanthus mongolicus along the line and avoid the harm to the ecology caused by the excavation and filling of the roadbed, the builders chose "bridge instead of road" to transplant the wild Ammopiptanthus mongolicus artificially within the red line of construction, and to protect the roadbed slope along the line by planting trees, so as to promote the construction of "green project" with high quality. In
Shaanxi, at the construction site of Tianzhushan No.1 Tunnel in Xishi high-speed rail, the builders of the 11th Bureau of China Railway are carrying out tunnel excavation, concrete pouring and other operations. At present, the construction of the main tunnel has exceeded 2500 meters. The total length
of Tianzhushan No.1 Tunnel is about 14.7 kilometers, which is the key and difficult control project of the whole line of Xishi high-speed rail. According to Liu Hanliang, the project manager of the 11th Bureau of China Railway, during the construction, the builders excavated synchronously from nine working faces, and innovatively applied more than 20 new technological tools to ensure the smooth progress of tunnel construction. After the completion and opening of
the Xishi high-speed rail, Xi'an to Shiyan will arrive within one hour, and Xi'an to Wuhan will arrive in about 2.5 hours, which is of great significance to the rural revitalization of the Qinba Mountains and the economic development along the line.
In Chongqing, at the construction site of Gaosheng No.1 Tunnel in Kangyu Section of Xiyu high-speed rail, 186 constructors of the 17th Bureau of China Railway adhered to the first-line production. At present, the standardized construction of tunnel entrance has been completed, and the main project is progressing in an orderly manner.
According to Xu Zhigang, the project site manager of the 17th Bureau of China Railway, Gaosheng No.1 Tunnel is located in Luojiazhai Gas Field, Gaoqiao Town, Kaizhou District, Chongqing City, with a total length of 8392 meters, of which about 500 meters underpass the natural gas pipeline, accompanied by gas, which is difficult to construct and has high safety risks.
The West Chongqing high-speed rail is an important part of the Beijing-Kunming Passage and the Baotou (Yinchuan) Sea Passage in China's "eight vertical and eight horizontal" high-speed railway network. After completion, it will be connected with the Chengdu-Chongqing high-speed rail, Zhengzhou-Chongqing high-speed rail and other lines that have been built and operated, thus promoting the further improvement of the road network structure in the central and western regions.
In Hubei Province, the first pouring of continuous box girder of Shaganghe Reservoir Bridge in Xiangjing high-speed rail, which was constructed by the 15th Bureau of China Railway, marked the beginning of the construction of the superstructure of 69 bridges on the whole line and laid a solid foundation for the completion and opening of the whole line on schedule.
According to Yang Li, the project manager of the 15th Bureau of China Railway, the Shagang River Reservoir Bridge is 1766 meters long and is one of the key and difficult projects of the whole line. Xiangjing high-speed rail connects Xiangyang City and Jingmen City in Hubei Province, with a total length of about 117 kilometers, which is an important part of Hunan Passage, one of the main high-speed railway network corridors in the national medium and long-term railway network planning. There are many bridges and tunnels along the line, accounting for 84.7% of the total, of which 69 new bridges are about 77 kilometers.
In Zhejiang, the first concrete precast box girder of the Wenling-Yuhuan section of the Hangzhou-Taiwan high-speed rail (Wenyu Railway) was poured in the Wenling Beam Fabrication Yard constructed by the 24th Bureau of China Railway, marking a new breakthrough in the construction of the Wenyu Railway and accelerating the construction.
According to Xu Xingan, the project manager of the 24th Bureau of China Railway, there are 17 bridges along the Wenyu Railway, totaling about 18.3 kilometers, and 12 tunnels, about 17.2 kilometers, with the ratio of bridges to tunnels reaching more than 87%. The first concrete precast box girder poured this time is 32.6 meters long and weighs 697 tons, which will be used for the erection of Wenyu Railway Bridge.
Wenyu Railway is the first local railway in Taizhou City, with a total length of about 37 kilometers and a design speed of 350 kilometers per hour. After the completion of the line, it will end the history of no railway in Yuhuan City, Taizhou, Zhejiang Province, and realize the goal of "county-to-county railway" in Taizhou, which is of great significance for speeding up the integration of Taizhou into the Yangtze River Delta with high quality.
In Fujian, Xiamen North Railway Station, which was designed by the consortium led by the Fourth Railway Institute and constructed by China Railway, has made a new appearance. According to Yang Jian, the design director of the Fourth Railway Institute, Xiamen North Railway Station is the most difficult station in the construction of Fuzhou-Xiamen high-speed rail, the first cross-sea high-speed rail in China. During the construction, the designers innovatively adopted the design of merging the old and new stations. After the new Xiamen North Station and the existing Xiamen North Station are merged, the total scale of the platform will reach 13 sets and 27 lines, and the annual passenger volume is expected to reach 50 million. Xu Bin, head of
China Railway Construction Decoration, said that Xiamen North Railway Station integrates the old and new stations, and passengers can quickly enter and leave the station from six different directions and locations. At the same time, the construction personnel practice the concept of green environmental protection and install about 7000 square meters of intelligent optical fiber lighting system on the roof of the station, which can save about 40000 kilowatt-hours of electricity throughout the year.
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