Longlong Railway Fujian section maximum span continuous beam smoothly

Reporter Shi Huaxing Correspondent Zhang Yongwei

In the early morning of July 20th, the largest span continuous beam bridge of the Fujian section of the Longlong Railway in the 24th Bureau of China Railway, the 155 -meter prestressed concrete of the Tingjiang Special Bridge, was a continuous continuous Lianglong, which was laid for the opening of the Jiangjia Liang Channel. The foundation.

The Tingjiang Extra Bridge is located in Shanghang County, Longyan City, Fujian Province, with a total length of 1731.16 meters, with a length of 325 meters, including 2 spans 85 meters long, 1 span 155 meters long. Tingjiang is a key key project throughout the line.

The rigid consecutive beam is 44.5 meters high, and it is also a cross -river construction. Safety tasks such as high -altitude falls and object strikes are heavy.

Linear control is the top priority of the construction of the construction of the continuous beam. The project department comprehensively considers the impact of various factors such as concrete quality, prestressed tension, hanging basket deformation, temperature, and concrete shrinkage and slow changes. By buried monitoring elements, measures such as linear surveillance measurement and timely correction adjustment. Bridge construction linearly meet the design requirements.

The construction of the mid -crossing dragon section is a key technical link for the construction of a 155 -meter prestressed concrete. Before crossing the Dragon, the T structure on both sides of the medium -sized dragon section is carried out. After the top beam locks the co -dragon's strong skeleton, and the water bottle is used for weight, the temporarily tensor dragon section steel bundle to reduce the beam body to reduce the beam body. Defir deforination to ensure the quality of the beam body.

Through intelligent tensor construction technology, the manual operation is automatically controlled by the intelligent machinery, realizing automatic tensor, and improving the accuracy of tensor; using large circulating intelligent sewing construction technology, continuous circulation pressure is exhausted through the channel air, ensuring that the slurry is dense, avoiding it, avoiding it The steel twisted wire is rusty, which improves the durability of the work efficiency and bridge structure. These intelligent construction have changed the traditional quality management model. One -click operations are simple and easy to understand, realized remote monitoring, the entire process system automatically regulates operations, and the data table is automatically printed, which realizes "intelligent control, remote tracking, timely error correction" , Easy to implement dynamic management and quality traceability.

The Tingjiang River is the largest river in the west of Fujian. The rigid continuous beam connects the urban areas on both sides of the Hangzhou County. Under the bridge is the green roadside of the county residents of leisure exercise. In order to protect the mother river of this people in the western Fujian people, the project department of the second standard project department of the Longlong Railway has set up a fifth -level mud sedimentation tank. After the precipitation of 5 mud pools, the mud water turns into a clear water. The main pier uses a reinforced cage with pebbles, and then stacked a cage with a cage full of coffee. Compared with the earthy coffin, the stone coffin can better prevent filling from being lost into the river, and it can effectively avoid the pollution and stasis of the Tingjiang River.

The project department also sets up environmental protection monitoring points to regularly monitor the ecology, atmosphere, water quality, noise and other related data of the surrounding environment to ensure the ecological balance in the region.

Longlong Railway connects Longyan and Longchuan in the two provinces of Fujian and Guangdong. It is a double -line high -speed railway with a design speed of 250 kilometers per hour. Millions of people in the Western Ministry of Western Fujian District are looking forward to the people's hearts and the road to wealth. After the completion of this railway, it will end the history of no railway in Wuping County, accelerate the construction of the Hangzhou -Guangzhou high -speed railway and the rapid channel of the Fujian and Guangdong inland, consolidate the results of the people of the people of the Soviet Union in the old district, and drive the red tourism represented by the "Gutian Conference site". Development is of great significance to the realization of the revitalization and development of the revolutionary district.

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