Continuous beam closure of Mudanjiang super large bridge, the largest bridge in the whole line of China's East High Speed Railway
China News Agency, Harbin, October 17 (reporter, Shi Yifu): Mudanjiang grand bridge, 128 meters long continuous beam, was successfully closed, the project Department of Mudanjiang bid section I of China Railway Fourth Engineering Group Co., Ltd. announced on October 17. It marks an important progress in the construction of China's easternmost high-speed railway - Mujia passenger dedicated railway. The total length of the
Mujia high-speed railway is about 367.19km, which is the main construction project of China's medium and long term railway network planning and the railway engineering project of the national 13th five year plan. It is also the longest high-speed railway line in Heilongjiang Province of North China. The whole line of the
Mujia high-speed railway is located in the high cold zone of China, with the lowest temperature of minus 36 ° C in winter. It is faced with many problems in construction, such as frost proofing, snow prevention and so on. The
Mudanjiang grand bridge is led out from Mudanjiang station, crossing Fujiang bridge, Bei'an River and Mudanjiang, and parallel with the existing Mudanjiang railway. Because the continuous beam here adopts the cantilever construction method, and the cross environment is complex and the area is limited, the project builder overcomes the difficulties of high safety risk and construction pressure, so as to ensure the project quality and construction progress.
in order to ensure the successful realization of the construction period node goal of beam erecting, the construction unit organized and carried out winter construction drill in mid October 2018, and carried out continuous innovation and improvement on the construction technology.
they adopt the measures of hanging fire-proof tarpaulin and color steel heat preservation board at the beam end instead of the traditional way of hanging cotton tarpaulin on the protective frame, and adopt the intelligent temperature control system to realize the real-time monitoring of concrete temperature measurement, effectively ensuring the construction quality in winter. (end)