Five Company of the China Communications Aviation Bureau: All the B6 bidding beams of the Qinqin section of the Qin and Qin Expressway are completed

Recently, the Beijing -Qin Expressway's Fifth Expressway Zunqin Duan B6 bidding the last 榀 T beam was completed smoothly. At this point, all the prefabricated beams of the Qin B6 standard 2102 榀 are completed.

The total length of the Qinqin section of the Qinqin section of the Beijing Qin and Qin Expressway is about 22 kilometers. It is integrated with road base, bridge, tunnel, and house construction. One of the service areas and toll stations. Among them, 34 bridges have a total length of 5082 meters, and a total of 2102 榀 is needed, including 30 meters T beam 1638 榀, 16 meters T beam 464 榀, and there are many prefabricated beams. There are four types of corners of 30 meters T beams, 16 meters of 16 meters, 16 meters. There are seven types of Tliang, so the construction process is complex and the quality control is difficult.

During the construction process, the project department passed the BIM technology application, concrete raw material control, reinforced numerical control processing, optimized land material ratio, reinforced tie positioning, template installation adjustment, concrete pouring flow rate, and collapse control. The quality has achieved good results, and created a good result of a single -day pre -production T beam, a single month prefabricated T beam 352 榀. In 2021, the two bridge and tunnel quality improvement competitions were obtained. The first and second place, a total of 500,000 yuan was won.

As the auxiliary channel and necessary supplement of the Hebei section of the Jingha Expressway, the project constitutes an important part of the "Beijing -Qin to Jingzhang Channel" in the "four vertical, four horizontal and one ring" skeleton. The successful completion of the prefabricated beam work marks the smooth completion of another major node project of the Qin Qin B6 bidding project of the Qin and Qin Expressway, which has laid the foundation for the opening of the project during the project.

Text/Picture: Popular

Edit: Li Zhicai

Responsible editor: Liu Fuqing

Supervisor: Wang Yan

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