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With new equipment and new construction method, the hard rock top shield machine "Urban Network Crossing" of China Railway Construction Heavy Industry Co., Ltd. is offline to help the construction of key projects.

March 30, 2023

March 29,By China Railway Construction Heavy Industries、Changsha water industry、China Construction Fifth Engineering Bureau、Hard rock top Shield Machine for raw water pipeline project of Changsha Leifeng Water Plant jointly built by Hunan Urban Network Pipe Gallery“City network crossing number”Offline in the primary industry park of Railway Construction Heavy Industry。The construction of top Shield Machine breaks through the difficulty of starting from the short working shaft of Shield Machine.,Pipe jacking machine can not adapt to small radius turning、Application limitations and bottlenecks of long-distance tunneling and other working conditions,At the same time, it has the advantages of high economic benefit of pipe jacking method and long-distance construction of shield method.,As a guide/Drainage tunnel、Power tunnels and other underground pipeline network projects provide new equipment and construction methods.。 

The equipment is offline

Cao Qian, General Manager of Changsha Water Industry Group Co., Ltd., delivered a speech and announced that the top shield machine was offline.

Deputy Secretary of the Party Committee of the Municipal Environmental Protection Branch of China Construction Fifth Bureau、Tan Yansheng, Executive General Manager, delivered a speech.

Deputy Secretary of the Party Committee of Railway Construction Heavy Industry、Director、He Yongjun, chairman of the trade union, delivered a speech.

Li Shan, deputy general manager of Central China Regional Command of China Railway Construction Heavy Industry, presided over the offline ceremony.

“City network crossing number”Excavation diameter 3.67 meters,The total length of the machine is 55 meters.,Cutter head coating“Water saving”Icon,It means responding to the country“Save water resources”A call。“City network crossing number”It will be applied to the raw water pipeline project of Leifeng Waterworks in Changsha.,It is a livelihood project to improve the quality of life of the people in Yuelu District of Changsha City.,It is also a basic project to promote the high-quality development of Yuelu District in Changsha City.,After the completion of the project, it is of great strategic significance to ensure the safety of water supply in Hexi urban area of Changsha City.。

The raw water pipeline project of Leifeng Water Plant in Changsha has a long distance.、Extremely hard rock、Small diameter and other construction difficulties。The R & D team of China Railway Construction Heavy Industry carries out a series of targeted designs.,Equipped with hard rock heavy duty cutter head、Man-hold pressure maintaining system,Adopt“Top the backing first”Construction method,O as to ensure the safety of the top shield machine.、Fast tunneling。

“City network crossing number”Hard rock top shield

Coming up,The top shield machine will be dismantled and transported to the construction site.,After completing the assembly and commissioning of the whole system,Formally start tunneling。China Railway Construction Heavy Industry always adheres to the concept of scientific and technological innovation,Independently developed retractable tube curtain machine、Hard rock pipe jacking machine、Quick topping machine、Small diameter shield machine, etc. Overcome many extremely complex underground pipeline network construction problems,Provide all-round intelligent technology and equipment for pipeline network construction for major national projects。

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