The first section of Yantai Mountain Sea Expressway is high -quality and fast -successively set up

Jiaodong Online, July 27 (Reporter Wang Xiangrong Correspondent Zhao Dili) On July 26, the first section of the steel box beams of Yushanhai Road project undertaken by the China Construction Eighth Bureau was set up smoothly, marking the construction of the upper construction of the Shanhai Road project To a new level, it has created favorable conditions for the construction of the subsequent bridge deck.

At 22:18, with the close cooperation of on -site managers and construction operators, all components of the steel box beam were placed smoothly on the temporary bracket, and the project successfully completed the first steel box beam standing task.

The steel box beams set up at this time are located at the intersection of Fengming Road and Shanhai Road. The span is 50 meters, the beam is 26.7 meters wide, and the total weight is 387 tons. Each box beam is divided into 3 components, and a 260 -ton car crane is lifted on the site for mission.

In order to ensure the quality of construction, before the hanging, the segmentation components are calculated on the strength, stiffness, and stability of temporary brackets, support, cranes and other temporary structures and steel beam structures themselves. After entering the field, the box beam was strictly accepted with construction, supervision, and design units. Before the installation, the top surface height, midline, and pores of the cover beam support are re -measured. Within the allowable deviation, the error should measure its position, high range, and pre -arch for each time a meter completion.

After the box beam is settled, in order to facilitate accurate adjustment, 4 20T hydraulic jacks are placed at the box beam. After the position adjustment of the box beam is in place, according to the sequence of the lifting, the section is used as the unit.

In order to ensure safely and successfully completing the construction tasks of the beams, the project department carried out a systematic operation and safety technical intercourse on the operating team in advance. At the same time, actively communicated with the road traffic department to reasonably improve the traffic guide reform plan, carefully organized and scientific construction, and scientific construction. Make sure that the vehicle continues. Before the construction of the beams, the management personnel of the project department conducted safety acceptance, testing, and trial suspension of construction machinery such as cranes and beams to ensure that the entire beam process was safe, smooth and orderly.

From the north of the project to the south of the Tashan Tunnel, the south of Greenstad, the total length is about 5.7 kilometers. As the important "one vertical" in the first expressway and Yantai "one horizontal, two vertical" expressway network as the "12335" construction idea of ​​Yantai Central City. , Will form a "axis+grid" fast road layout, integrate external and highways, and connect with important passenger and freight hubs and key urban development areas internally, which is of great significance to enhance the quality of urban function and enhance the capacity of radiation in the central urban area. The project currently has a total of 7,782 pile foundations, 175 inherits, 173 pier pillars, 65 pouring beams, 826 prefabricated small box beams, and 96 prefabricated box beam installations.

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