Macau light rail extension Hengqin line project shield machine smoothly starts

Correspondent Pei Yifan Wu Kiln Yang Chenxin

On July 13th, the largest diameter shield machine "Aoqin 1" applied by Macau's application officially started at the Macau light rail extended Hengqin line project, marking the first large diameter underwater underwater underwater underwater underwater under the cross -border traffic connection of Macau and Hengqin The shield tunnel enters the stage of comprehensive construction.

Shield machine starting scene

The Macau Light Rail Extension Hengqin Line Project is the first time that the Macau Special Administrative Region Government uses the shield method construction project in rail transit construction. The shield interval tunnel is about 900 meters long, and the cave body is all in a weak layer such as the silt layer, the silt soil layer, and the powder clay layer. V "glyph -shaped large slope through a series of problems such as the land settlement control of Macau and Hengqin, the Lotus Bridge and the many sensitive buildings on the port.

In order to ensure the smooth progress of the project, the project team planned in advance to make a tailor -made, more efficient and adaptive large -diameter soil pressure balance shield machine for the natural environment, geological conditions and excavation risks of the project. ", In order to deal with the requirements of the underwater digging and existing buildings. The shield machine excavates the diameter of 7.98 meters and the entire captain is about 87 meters. It uses a composite knife tray to innovate the shield dual hinge design, and tailor -made advanced geological detection, high -precision gas liquid balance, visual monitoring in the soil warehouse. Intelligent systems such as the automatic measurement of the shield tail gap and the shield radial gap compensation will provide a strong guarantee for the safe and high -quality construction of the submarine tunnel construction.

"Aoqin 1" shield machine

The "Aoqin 1" shield machine transportation, lower well, assembly, and commissioning stage is during the severe period of Macau's epidemic. Nanguang Group and China Railway Construction China Civil Engineering and China Railway 16th Bureau and other participating units have worked in response to the prevention and control measures of the epidemic situation of Zhuhai and Macao, scientifically organized the construction plan, reasonably arranged the layout of the venue, and the orderly mobilization engineering equipment was mobilized. With human resources, the preparations before the shield starting were successfully completed, and the epidemic prevention and control and production and operation were made.

The Macau Light Rail Extension of the Hengqin Line Project was built on behalf of the Nanguang Group. China Railway Construction China Civil Engineering, China Railway 16th Bureau, China Railway Construction and Railway Fourth Court participated in construction. The project starts at HE1 Station (elevated station) in Macau, wears a cross gate waterway west, and set up HE2 Station (underground station) under the Hengqin Port Travel Inspection Building. It is about 2.2 kilometers throughout the board. Important passenger channels.

Project schematic diagram

As a key people's livelihood project of the Macau Special Administrative Region Government, this project is an important link between Macau and Hengqin Shenzhen District. It will create a comfortable and convenient cross -border travel environment for residents of the two places. The living circle "lay a solid foundation, and at the same time, it will also effectively promote the integration and development of Qin and Australia, and contribute to the promotion of Macao's economy and diversification and integration into the overall national development situation.

Shield machine starting ceremony scene

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