Hangzhou Airport Rail Express realizes transfer to the final stage

Recently, the Hangzhou Airport Rail Express Shentang Bridge Station and Line 2 connection channel Dark digging section of the last side of the last side of the concrete was completed, marking the airport line and line 2 to enter the final sprint stage.

The Hangzhou Airport Rail Express Shentang Bridge Station is located at the intersection of Wen San Road and Wenwen Road. It is arranged along the east -west direction of Wen San Road. The station has a total of 3 entrances, 3 safe entrances, two groups of winding pavilions, and 1 transfer channel. After the transfer channel is completed, the subway airport line and line 2 will be connected to achieve two -line transfer, which provides great convenience for Hangzhou citizens to travel.

Geographical location diagram of the station

Due to things adapt to things, dug on the darkened digging

The Hangzhou Metro Interchange Channel was built in the early stage of design. Because Line 2 was located on the main road of Mogan Mountain Road, the traffic volume was extremely large, the surrounding facilities were large, and the pipelines were complicated. In the realization of airport lines and lines 2, the Municipal Metro Group has optimized the construction of the Mogan Mountain Road from the Ming Digging method to the dark digging method after an early analysis and research.

Careful organization, meticulous

The biggest difficulty in the construction of the construction at the scene is to wear and protect the DN1500 to run the main sewage pipe. The initial design was rebuilt after the digging, but during the construction process, it was found that this pipe was inconsistent with the original collection information. The construction period and new sewage pipes have a greater impact on the surrounding area. All parties of the project organized discussions for many times, and at the same time invited experts to check, and finally formulated a special construction plan for retaining existing sewage pipes. During the entire dark excavation, the participating parties organized the joint experts 8 times, the node accepted 3 times, and finally completed the sewage pipe under the sewage pipe.

Dark digging construction expert meeting

Dark digging construction expert meeting

Practical supervision, one tie to the end

The construction ground floor of the dark excavation channel is on the mud layer, and the surrounding buildings and pipelines are complicated. In addition, the main road of Mogan Mountain Road is high. The supervisors of the Rail Transit Signal Section of Hangzhou Construction Engineering Quality and Safety Supervision Station carefully studied the risks of engineering, strengthened the supervision of advance, and organized professional forces to make reasonable optimization suggestions for design and construction plans. During the dark excavation process, it entered the construction site and increased from a weekly inspection to once a day. The parameters and square meters of the grouting stage were controlled to the excavation stage. Then to track and manage waterproof paving, reinforcement safety, and concrete pouring at the structure of the structure construction stage. Adhering to the spirit of such a work, the construction of the construction from the beginning to the completion, no safety quality accidents occur. Settling does not exceed 3cm, and the sewage drops are controlled within 2cm. In addition, it also actively coordinated the problems caused by the participating units in the process of process conversion. By promoting gangs, the construction operations were promoted harmoniously and smoothly, and it provided a strong guarantee for the transmission of channels.

Supervisor went deep on -site inspection and guidance construction

Supervisor went deep on -site inspection and guidance construction

The subsequent will enter the decoration stage, and there are still many tasks to be completed in the realization of transfer. The participants are still adhering to the target node at night to continue to fight for the final transfer.

(Correspondent Cheng Siqi, Lou Xiaoren, Luo Longhua)

- END -