[I love this blue land] The Hong Kong-Zhuhai-Macao Bridge has a lifespan of 120 years, relying on the "National Bridge-Building Team"! [Panoramic News]
Economic Daily - China Economic Net, Zhongshan, July 17th (Reporter Ma Changyan) On July 16th, the "I Love This Blue Land" online theme event came to Zhongshan City, Guangdong Province , and walked into China Railway Southern Engineering Equipment Co., Ltd., this is the Zhongshan Base, the steel box girder assembly base tailor-made by China Railway Shanqiao Group for the Hong Kong-Zhuhai-Macao Bridge. All steel box girder assembly of the Hong Kong-Zhuhai-Macao Bridge is completed here.
The picture shows the gantry crane of China Railway Southern Engineering Equipment Co., Ltd. Economic Daily - China Economic Network reporter Ma Changyan/Photo by
China Railway Shanqiao Group undertook the largest bid for the manufacture of steel box girder for the Hong Kong-Zhuhai-Macao Bridge. The steel box girder deck length is 8.67 kilometers and totals 183,045 tons. The Zhongshan base is located in the east Liuwei of Ma'an Island, Linhai Industrial Park, Torch Development Zone, Zhongshan City. It is connected to the Pearl River Delta water system via the Hengmen Waterway and is adjacent to the Lingdingyang estuary. It is a very precious golden coastline in the Pearl River Delta region. The base is about 40 kilometers away from the Hong Kong-Zhuhai-Macao Bridge, which facilitates the transportation of steel box girders.
Wang Zuochen, deputy general manager of China Railway Southern Engineering Equipment Co., Ltd., said that the steel box girder assembly of the Hong Kong-Zhuhai-Macao Bridge is the first in China to realize the "workshop-based" operation of large-scale steel box girder assembly, which greatly reduces the impact on the environment and improves assembly, The welding working conditions play a very good role in ensuring the quality, safety, environmental protection and progress of the bridge.
The picture shows the production area of China Railway Southern Engineering Equipment Co., Ltd. Economic Daily - China Economic Network reporter Ma Changyan/Photo by
All steel box girder assembly adopts the "long line method" assembly technology. The long line assembly technology of steel box girder is to arrange the height of tire frame according to the design and monitoring line, so that the beam segments can be made and matched. And pre-assembly is completed at one time, which saves the time of beam segment transportation and pre-assembly, and effectively shortens the beam segment production cycle.
The steel box girder of the large section of the Hong Kong-Zhuhai-Macao Bridge was hoisted using the gantry crane hoisting method for shipping. On the premise of having roll-off and roll-off capabilities, the 5,000-ton port pool is equipped with two 2,000-ton gantry cranes with a span of 62 meters and a lifting height of 45 meters. The lifting capacity is the largest in the country and can meet the requirements of all large-section steel box girders. For shipment, as long as the tonnage of the ship meets the transportation needs, no special modifications are required, and the hoisting timing is not restricted by the tide. All-weather operations can be achieved, making the operation safe and efficient, and effectively ensuring the construction period of the Hong Kong-Zhuhai-Macao Bridge.
It is worth noting that in order to ensure the 120-year service life of the Hong Kong-Zhuhai-Macao Bridge, major quality hazards must be solved from the equipment and human influence must be eliminated. To this end, China Railway Shanqiao Group and a professional robot company jointly designed and developed a U-shaped rib plate unit automatic assembly and positioning machine tool and a plate stiffening rib unit automatic assembly and positioning machine tool, which were used for the first time in the manufacturing of steel box girder plate units. International leading level.
As the world's longest cross-sea bridge, the Hong Kong-Zhuhai-Macao Bridge has attracted worldwide attention and is known as "one of the seven wonders of the contemporary world." China Railway Shanqiao Group, the benchmark unit for bridge construction, is known as the "National Bridge Construction Team."
Ma Weinan from the Party Committee Work Department of China Railway Shanqiao Southern Equipment Co., Ltd. said that China Railway Southern Engineering Equipment Co., Ltd. has key equipment such as plate unit welding robot system , and has basically formed a complete set of 100,000 tons of steel truss and steel box girder manufacturing tasks per year. ability.
The picture shows the dock area of China Railway Southern Engineering Equipment Co., Ltd. Economic Daily - China Economic Net reporter Ma Changyan/Photo by
In addition to the Hong Kong-Zhuhai-Macao Bridge project, China Railway Southern Engineering Equipment Co., Ltd. has also completed the Pingtan Strait road-rail dual-use bridge , the Second Humen Bridge, and the Humen Second Bridge since it was put into operation in 2012. There are more than a dozen key domestic and foreign bridge projects including the Halogaland Suspension Bridge in Norway, the Baisha Bridge in Liuzhou, and the Lancang River Bridge.
Editor in charge: Jiang Zhenyu
