On April 2, the successful erection of the first steel box girder of the deep and middle channel in the core project of the Guangdong-Hong Kong-Macao Greater Bay Area marked the official start of the construction of the steel box girder for the deep and middle channel and will fully enter the superstructure construction stage.
At 17:58 on the 2nd, the "Tianyi" transport and erection vessel dropped the first steel beam of 4 meters high, 20 meters wide, 133.1 meters long and 1780 tons in weight on the right side of the non-navigable bridge in the Lingding East Flood Discharge Area. On the pier.
The steel box girder that was loaded on the ship this time weighed 1780 tons. During the formulation of the ro-ro plan, the project department went through multiple rounds of research and discussion. In order to minimize the safety risk during the transportation of steel box girder, it was determined to adopt the roll-on The ship also has a new plan for transporting to the sea platform of Zhongshan Liangchang by a transport ship.
After the Hong Kong-Zhuhai-Macao Bridge, the deep-medium channel project is another world-class cross-sea channel cluster project integrating "bridge, island, tunnel, and underwater intercommunication". It is also the most technically difficult and most complex construction technology in the world. One of the works.
(Cai Minjie and Wang Pan produced Lv Huiqian's video source from Guangdong Transportation Group)
Editor in charge: [Ji Xiang]