Spring Wind Tunnel Shield Digging exceeds the 2000 -meter mark

The deep night reporter learned from the Shenzhen Municipal Transportation Bureau that the construction site of the Chunfeng Tunnel Project came out. The construction of the "Spring Wind" shield machine was successfully exceeded the 1000 ring and the 2000 -meter mark, marking the staged progress of the Chunfeng Tunnel construction.

The Chunfeng Tunnel is an important part of the "South Ring" fast road system in Shenzhen. The project is 5.08 kilometers in length, and the shield section is 3603 meters long. The Chunfeng Tunnel has the characteristics of "New Difficulties and New". The shields crossed the build area of ​​Luohu, and the buildings are built along the line. The safety risks are extremely high, which brings great challenges to technical management and control. The highest intensity can reach 173MPa, which brings great challenges to the management of tools.

In the face of many difficulties, under the leadership of the Shenzhen Municipal Transportation Bureau, all participants adopted a shield shell mud scheme to solve the large diameter shield through the full section hard rock floor mud warehouse mud and shield tail mortar. Ensure the safety of surface and surface buildings. At the same time, carry out advanced forecasts, dynamically adjust parameters, tool selection, etc. in real time, and timely correction the problems in the production process, and gradually improve the construction progress. Under the command of the background experts, the four levels of command construction of "decision -making instructor, diagnostic instruction layer, analysis feedback layer, and operation execution layer" are strictly conducted. construction safety.

It is understood that as of now, the Spring Wind Tunnel has completed the civil construction project of the west side of the west side, and the shield machine is in the downside inspection area, with the remaining 1687 meters; the traffic dredging of Ming dug segments on the east side is completed. , The second phase of the foundation pit is carried out in earth -to -earth construction, and the third phase is carried out.

In the next stage, the Chunfeng Tunnel Shield Section will continue to dig, and the Dongming excavation section will continue to promote the construction of the enclosure structure, earthwork, and main structure. After the project is completed, the "Spring Wind Road Elevated+Spring Wind Tunnel" corridor will be formed to open up the transportation bottleneck in the spring wind section, effectively solve the problem of traffic congestion of the Spring Wind Road, greatly improve the efficiency of traffic operation, and effectively alleviate traffic congestion in the southern region of Luohu District.

Shenzhen Evening News reporter Dong Yuhan correspondent Wang Liuxia

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