Changchun Airport Line (Line 9) The first phase of the project Five Working Area project shield starting

On September 19, the "Municipal Pioneer No. 1" shield machine of the Five -Prescription Zone Project of Changchun Rail Transit Airport Line (Line 9) was officially launched.

Changchun Rail Transit Airport Line (Line 9) The first phase of the project Five -Industry District project is responsible for performing the contract by the China Construction First Bureau China Construction Municipal Engineering Co., Ltd., and the construction content mainly includes one stop and three districts. Among them, Jiu Tainan Station is 333.27 meters in length. It is an underground two -story island -style stations. The construction content includes the civil and electrical parts. Folk Customs Museum Station-Central Square Station (Shield Method Construction), the interval has a liaison channel and pump room at YK75+785.394; Central Square Station-Jianlan Street Station (Shield Method Construction), the interval is at YK77+022.667 There is a connection channel; Jianlan Street Station-Jiu Tainan Station interval (light excavation+shield method construction, of which 231.7 meters long and 942 meters long in the shield range) are provided with liaison channels. The dark tunnel of this project adopts a single -layer lining type, with a diameter of 6.2 meters and a diameter of 5.5 meters. The width of the tube is 1.2 meters and 1.5 meters. The total length of the engineering line is about 3.6 kilometers, and the total area of ​​construction is about 50,464 square meters.

The shield tunnel uses a 6.48 -meter soil pressure balance shield machine, which traverses underground at the beginning of Jianlan Street Station at 21 meters. During the excavation process, the risk of non -performing geological safety is high. The medium coarse sand layer, the length of the sand layer on the left line is about 304 meters, and the right line is about 243 meters. Due to the poor and stable stability of the sand layer, when the sand layer is rich in water, the shield tail when the shield machine is excavated. The role of rising water and sand is risk.

Lou Xing, the manager of the Changchun Metro Project, said at the launch ceremony that in order to ensure the successful start of the shield machine of "Municipal Pioneer 1" and "Municipal Pioneer 2", the project department accepted, produced, remote transportation, remote transportation, and All aspects of on -site assembly to the preparation of the departure have always been strictly controlled, strict supervision in terms of technical solutions, monitoring measurement, and construction risks. At the same time, the China Construction Bureau, as the first unit in the construction enterprise to win the "China Quality Award", has always adhered to the core values ​​of "quality guarantee, value creation", and practiced the "pioneer spirit". Management and scientific construction, live up to the trust and trust of the people of Changchun City, and spare no effort to build the first phase of the city's urban rail transportation air port (line 9) to build the five -time work area into high -quality projects.

The first phase of the Changchun Rail Transit Airport Line (Line 9) is a fast connection line between Changchun New District and the central city area. It has an important role in supporting the development of Changchun New District, further prospering Changchun Longjia International Airport, and driving the development of Lianhua Mountain Ecological Tourism Resort. Essence The project is expected to be connected in November 2023. After the completion, citizens can take the subway to Longjia Airport and the surrounding tourist resort from the urban area. Traveling is more convenient, and at the same time, it will drive the rapid development of related service industries in the suburban area. (Hu Guangjiang)

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