Guangdong-Hong Kong-Macao Greater Bay Area is in full swing, and the west extension of the Hong Kong-Zhuhai-Macao Bridge is reported to be successful again. Recently, the three main towers of Huangmaohai Bridge East Tower, West Tower and Gaolan Port Bridge West Tower, which were built by Subot, have been successfully capped one after another, standing on the sea area of Huangmaohai with the momentum of "Dinghai Tongtian". This also marks an important stage of progress in the construction of the cross-sea bridge, which is about to enter the construction stage of steel girder erection.
No.1
Project Overview
The bridge tower is a key and non-replaceable component of the cable-supported bridge, and has a certain aesthetic landscape effect. Its construction quality is directly related to the stable and safe operation of the bridge. In order to meet the requirements of structural stress and beauty, the five main towers of this project are all single-column towers with concrete space curved surface and round end. From the bottom to the top, they are gradually changed from thick to thin, and then from thin to thick. The radius of the section arc and the position of the center of the circle are constantly changing, that is, the well-known "small waist" shape of Guangzhou Tower, which is simple, dynamic and soft. Behind the elegant shape of
No.2
technical service
is the strong support of the "unique skills" of the participating units. In recent years, Subot has done a lot of research and practice work in the design, preparation and application of high-strength, special-shaped and mass concrete of bridge towers. Specifically, in this project, according to the characteristics of concrete working conditions of the main tower of Huangmaohai Cross-sea Channel, three key technical issues have been condensed, namely, super-elevation pumping, crack control and appearance quality improvement. The core solutions are rheology modification, cement hydration exothermic rate control, process controllable expansion and shrinkage compensation technology, which have been fully and successfully applied in the project and highly recognized by the participating units.
The Huangmaohai Cross-Sea Passage is expected to be completed and opened to traffic by the end of 2024. At that time, it will form a group of cross-sea and cross-river corridors in Dawan District with the projects of Hong Kong-Zhuhai-Macao Bridge, Shenzhen-Zhongdao Bridge, Nansha Bridge and Humen Bridge, which will help the economic development of Guangdong-Hong Kong-Macao Greater Bay Area radiate to the western coastal areas of Guangdong and effectively promote the coordinated development of regional economy. Subot people will continue to participate in the construction of the project, actively cooperate to solve the technical problems encountered in concrete, and escort the completion of the project with high quality.
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