"Golden Hoop Dinghai", Railway Construction Heavy Industry Super Large Diameter Shield Machine "Jincheng No.1" Offline

"Golden Hoop Dinghai", Railway Construction Heavy Industry Super Large Diameter Shield Machine "Jincheng No.1" Offline

October 20, 2023

October nineteenth in the morning,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”Offline in Changsha No.1 Industrial Park of Railway Construction Heavy Industry。The cutter head of the shield machine is coated with“Ruyi Golden Cudgel”Pattern,Have“The golden hoop sets the sea,Good luck”A beautiful moral。“No.1 Jincheng”The whole machine is about 120 meters long.,Maximum excavation diameter up to 13.72 meters,It will become the longest single-head tunneling distance in Tianjin.、Slurry balance shield machine with the largest excavation diameter。

 “No.1 Jincheng”It will be applied to the excavation construction of Jingu Haihe Tunnel on Jinwei High-speed Railway.,For construction“Eight vertical and eight horizontal Beijing-Shanghai auxiliary passages and coastal passages”Contribute。Jingu Haihe Tunnel is the only shield tunnel on the whole line of Jinwei High-speed Railway.,It is also the first large-diameter shield tunnel of high-speed railway with the longest single-head excavation distance in Tianjin.。“No.1 Jincheng”The shield machine will cover the earth 8..5m ultra-shallow-buried stratum initiation,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,Received at the south side of the island park in the middle of the planned lake。

In view of the key and difficult points of the project,The R & D team of China Railway Construction Heavy Industries Co., Ltd. has configured the normal-pressure soft soil cutter head for the equipment.、Optical fiber continuous abrasion detection device、Telescopic main drive、A number of intelligent devices and advanced integration technologies, such as synchronous push assembly and intelligent fine adjustment devices for box culverts.,O as to improve the tunneling efficiency.,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 a key project to improve the comprehensive transportation system of Beijing-Shanghai corridor.。The construction of Tianjin-Weifang high-speed railway can complement Beijing-Tianjin-Hebei、Short board of high-speed railway development in coastal areas such as Shandong Peninsula,Improve the traffic conditions along the line,To drive Beijing-Tianjin-Hebei、Economic Development of the Bohai Rim and the Shandong Peninsula Urban Agglomeration,Implementing the coordinated development of Beijing, Tianjin and Hebei、The integrated development of the Yangtze River Delta and other national strategies are of positive significance.。

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