Core Viewpoint - The completion of the Xiangshan Bridge marks a significant engineering achievement and a new landmark in the Pearl River Delta region, enhancing connectivity within the Guangdong-Hong Kong-Macao Greater Bay Area [1][4]. Group 1: Project Overview - The Xiangshan Bridge, part of the Zhongshan Eastern Ring Expressway, spans the Pearl River Estuary and features a height of 270 meters and a main span of 880 meters, with a total length of 1776 meters [1]. - The expressway will connect major cities including Foshan, Zhongshan, and Zhuhai, with a total length of approximately 55.6 kilometers and is expected to be completed by August 2026 [1]. Group 2: Engineering Challenges - The bridge incorporates advanced engineering features such as a dual-layer, dual-direction sixteen-lane design, with the upper layer accommodating eight lanes for high-speed traffic [1]. - The construction faced significant challenges, including complex working conditions and the need for high precision in assembly, particularly for the 79 steel beam segments weighing a total of 79,000 tons [2][3]. Group 3: Technological Innovations - The project utilized advanced technologies such as BIM for precise modeling and monitoring, ensuring that the construction met design specifications [2]. - A custom-designed QMD1500t bridge deck hoisting machine was developed, capable of lifting segments weighing up to 1300 tons with a precision of less than 3 millimeters [3]. Group 4: Strategic Importance - Upon completion, the Zhongshan Eastern Ring Expressway will connect directly to the Shenzhen-Zhongshan Channel and integrate with other major highways, enhancing transportation links and supporting industrial collaboration in the Greater Bay Area [4].