China News Service, Dalian, December 11 (Reporter Yang Yi) On the 11th, with the smooth completion of the second round of traffic guidance and modification of the Dalian Bay Subsea Tunnel, the F2 construction section on the east side of Gate 2 of Dalian Port was 100 days ahead of schedule The start of closed construction signifies that all seven construction sections of the land area project of the sea tunnel under the responsibility of the three companies of China Communications First Shipping Bureau have the construction conditions, and the project has entered the full construction stage.
After the Hong Kong-Zhuhai-Macao Bridge, the Dalian Bay Subsea Tunnel is another cross-sea traffic cluster project with complex technical conditions and high environmental protection requirements. The tunnel is 5.1 kilometers in length and consists of 18 immersed pipes.
After the completion of the Dalian Bay Subsea Tunnel, it will add a new express channel running through the north to the south for Dalian, which is of great significance for alleviating traffic pressure, optimizing city functions, and promoting the integrated construction of Dalian Bay on both sides of the strait.
The picture shows the main body of the F1 section.
(Drone photo) Photo by Wen Xinyu
As the largest municipal project in the entire submarine tunnel, the main function of the land engineering is to connect the important link of the municipal roads after the submarine tunnel goes ashore from north to south. In order to disperse the traffic pressure, it adopts two-level bifurcation and three-way diversion traffic. Organize a strategy to set up a total of three entrances and exits to quickly divert vehicles at the entrance and exit of the submarine tunnel to ensure smooth roads.
Cui Xusheng, chairman of the labor union of the sea tunnel land project department of the third company of China Communications First Shipping Bureau, introduced that the key construction parts of the land project are adjacent to high-end business districts, residential areas and various landmark buildings on both sides of the road.
In order not to affect the travel of surrounding citizens and the normal operation of nearby administrative units, the project team divided the project into 7 construction sections and chose the method of traffic diversion and flow adjustment for construction.
"In order to fully take into account the convenience of the general public, we have successively built 5 auxiliary roads, 6 new pedestrian passages, 56 new signal lights, 42 adjusted signal lights, 15 rerouting and diversion roads, and set up remote indicator signs. 73 yuan, as far as possible to ensure unobstructed traffic.” Cui Xusheng said, at this point, the major traffic guidance and transformation of the land area of the sea tunnel project has been completed, and the seven construction sections will all start construction and enter the major stage.
The picture shows the construction of occlusal piles on site.
Photo by Wen Xinyu
Up to now, the main structure of section F1 of the land project has been completed; the main structure of section B will be completed within this year; section C2 enclosure occluding piles, high-pressure jet grouting piles, and lattice columns have been completed; construction section A enclosure occluding piles have been completed, The lattice column has been completed, and the remaining construction sections after the closure of the guidance and reform will also start closed construction one after another.
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