New progress has been made in the construction of the Rail Transit Chongming Line. Watch the scene together

On the Mid -Autumn Festival holiday on September 12, the construction site of the Shanghai Metro was still busy, and the rail transit Chongming Line 108 was lined with a knife plate, one of the important nodes. At 9:30 in the morning, with the close cooperation of a 650 -ton main crane and a 600 -ton supplement, the "Shentong" shield machine weighing 308 tons slowly lifted from the ground to complete the "turn" and completed the "turn". Essence

According to reports, the total length of the "Shentong" shield machine is 148 meters. It is a mud water and gas balance shield machine. It uses a normal pressure knife plate design. The system and meet the 8.4 -meter ultra -wide "bow" parts installation design. The diameter of the shield machine has a diameter of 13.5 meters and a weight of 308 tons. It consists of a center block, 6 main knife arm, and 6 auxiliary knife arm welding.

The main shape of the "Shentong" blade coating is a blooming safflower, which is composed of six red petals, which symbolizes the ecological environment of Chongming Island Bird's Fragrance, and reflects the theme of "The Development of the Houhua Bo Dynasty". The blue arrows gathered inwardly on the outside symbolize the gatalization of rail transit builders, and the beautiful meaning of unremitting efforts to build a "world -class ecological island".

The knife plate is welded on the site of segmentation, and the welding assembly lasted for 25 days. In the early days, the main structure of the 108 -standard well of the Chongming Line has been completed. At the scene on September 12, after a series of operations such as hanging, turning over, and lowering the well, it took about an hour later, the "Shentong" knife plate successfully completed the mission of the well. "Later, the shield machine driving part of the shield machine that had been placed in the work well was later assembled.

The "Shentong" shield machine will complete the construction of the Nangang River section between the Chongming Line to Pudong. Wang Yongjia, the manager of the Tunnel Shares of the Shanghai Tunnel Chongming Line 108 Treasure Shield Project, said that the Chongming Line Yuejiang Section adopts a "single hole and double line" form, that is, an up and down line is arranged in a tunnel. According to the plan, the shield machine will be excavated in November.

It is reported that the tunnel of the Nangang Division of the Chongming Line, which is about to be excavated, is 7.74 kilometers in length. After completion, it will become the "first tunnel" of Shanghai urban rail transit through the Yangtze River.

Responsible editor Xu Ling

Text Li Jicheng

Source Pudong released

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