China News Service, Guangzhou, February 28 (Cai Minjieyue Road Construction) The Guangdong Transportation Group Shiziyang Channel Project announced on the 28th that at 21:00 on the 27th, as the robotic arms moved back and forth, the last truck of concrete was poured into Today, the west anchorage of the Shiziyang Bridge was announced to be closed. This is another major development after the completion of the east anchorage in early February.

  The Shiziyang Corridor is another super project in the Guangdong-Hong Kong-Macao Greater Bay Area after the Hong Kong-Zhuhai-Macao Bridge and the Shenzhen-Zhongshan Corridor.

The control project of the project - Shiziyang Bridge adopts a main span of 2180 meters and a double-layer steel truss suspension bridge to "cross the river in one span". It is planned to be completed and opened to traffic in 2028.

After completion, it will be the world's first double-layer suspension bridge in five categories: main span, main tower height, anchorage foundation, main cable scale, and number of lanes.

Aerial photography of the west anchorage of Shiziyang Bridge.

Photo courtesy of Guangdong Communications Group

  The Shiziyang Bridge anchorages are located on the east and west sides of the Pearl River and consist of anchor foundations and anchor bodies.

Among them, the west anchorage uses a circular ground wall with an outer diameter of 130 meters and a wall thickness of 1.5 meters and a circular reinforced concrete lining support structure. It is the world's largest bridge anchorage among projects currently under construction. Undertake construction.

  "The West Anchor is a key force-bearing component of the Shiziyang Bridge. It plays the role of anchoring the entire bridge. It is the 'Dinghaishen Needle' of the entire bridge. Its foundation depth reaches 36 meters, and the amount of earth and stone excavation reaches 500,000 cubic meters. For The requirements for quality management, construction management and organizational management are extremely high," said Huo Kairong, project manager of the Second Public Transport Bureau of the Shiziyang Channel T7 bid.

The construction site of the west anchorage of Shiziyang Bridge.

Photo courtesy of Guangdong Communications Group

  This time, the west anchorage back seal is fully prepared. First, according to the drawings, the base of the anchorage is excavated to the corresponding rock layer and elevation according to the design, the base surface is cleaned, blind ditch laying, base elevation measurement and joint trench inspection are carried out; after ensuring that the construction conditions meet the requirements, Then pour the back seal concrete.

  During the construction process, the project relied on the integration of automated collection equipment, big data analysis, the Internet of Things and other technologies to develop an intelligent twin platform for Anchor Dock to realize intelligent early warning, eliminate hidden dangers in advance, and protect and assist the safe construction of West Anchor Dock. The project completed the excavation of the ultra-large and ultra-deep foundation pit with high quality.

  "Currently, all the work on the Shiziyang Channel is progressing smoothly. The main tower is undergoing capping construction, and the east-west anchorage has been completed. The first section of the steel shell tower of the Shiziyang Bridge will be shipped in March. The next step will be to enter the main tower columns and During anchor core filling construction, it is planned that the height of the main tower will exceed 100 meters by the end of the year. We will seize the opportunity of spring work, accelerate scientific and technological research and intelligent construction, and strive to complete this year's construction tasks!" Guangdong Bay Area Transportation Construction Investment Co., Ltd. Chief Engineer Zhang Taike said.

  The Shiziyang Channel is another cross-river channel in the Pearl River Estuary that Guangdong Province has promoted the planning and construction of after the release of the "Outline Development Plan for the Guangdong-Hong Kong-Macao Greater Bay Area". Once completed, it will open up a new important channel for the integrated development of the east and west sides of the Pearl River Estuary and play a vital role in promoting the development of the Pearl River Estuary. It is of great significance to integrate high-quality development of the Pearl River Estuary in the Bay Area and create a 100-kilometer "golden inner bay" around the Pearl River Estuary.