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Railway Construction Heavy Industry Super Large Diameter Shield Machine "Jincheng No.1" Launches to Help the Construction of Shield Tunnel of Tianjin-Weifang High-speed Railway

January 24, 2024

Recently,The domestic super-large diameter slurry balance Shield Machine is jointly built by China Railway Construction Heavy Industry and China Railway 14th Bureau.“No.1 Jincheng”It started smoothly in Tianjin,It marks the largest excavation diameter in Beijing-Tianjin-Hebei region.、Jingu Haihe Tunnel of Jinwei High-speed Railway, the Longest High-speed Railway Shield Tunnel, Begins Excavation。

“No.1 Jincheng”The whole machine is about 120 meters long.,Maximum excavation diameter up to 13.8 meters,The cutter head is coated“Golden Hoop Ruyi stick”,It means something“The golden hoop sets the sea,Good luck”。It is understood that, “No.1 Jincheng”This time in the covering soil 8.5m ultra-shallow-buried stratum initiation,It will dig 6014 meters to the north.,During this period, it crosses Dagu Drainage River in turn.、Dongdagu Station of Southwest Ring Railway、Jingu First Line Overpass、Central Avenue overpass、A series of major risk sources such as the Haihe River and the earthquake fault zone,It will be received on the south side of the planned Lake Island Park.。

In view of the key and difficult points of the project,“No.1 Jincheng” Adopt a number of intelligent devices and advanced integration technology,The tunneling efficiency can be improved.,And that construction safety is ensure,To provide strong support for the smooth construction of the Tianjin-Weifang high-speed railway project。

Tianjin-Weifang High-speed Railway as China“Eight vertical and eight horizontal”It is an important part of the Beijing-Shanghai auxiliary passage and the coastal passage.,It is to further implement the coordinated development of Beijing, Tianjin and Hebei、National strategies such as the development of the Yangtze River Economic Belt,Key projects to improve the comprehensive transportation system of Beijing-Shanghai corridor,To drive Beijing-Tianjin-Hebei、The economic development of the Bohai Rim region and the Shandong Peninsula urban agglomeration is of positive significance.。

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