Since the East Main Tower of Zhongshan Bridge of Shenzhen China channel, the core hub project in Guangdong, Hong Kong and Macao, has also been successfully capped, recently, with the completion of sinking of E31 pipe joint of immersed tunnel of Shenzhen China channel, it has been successfully connected with E32, the first pipe joint at the east end of the project. So far, the sinking and docking of 14 pipe joints have been completed in the immersed tunnel. On December 28, 2016, Lingdingyang broke the tranquility of the past. The construction of West Rengong Island cofferdam, the first project of Shenzhen Zhongshan river crossing channel (hereinafter referred to as "Shenzhen China channel"), was started in the water area of the middle beach. Another sea crossing project in the Great Bay area of Guangdong, Hong Kong and Macao followed the construction of Hong Kong, Zhuhai and Macao Bridge. As the only direct highway connecting the two major functional groups of the Pearl River Delta "Shenzhen Dongguan Hui" and "Pearl River", it is also a traffic link connecting China's Guangdong pilot free trade zone (Guangzhou Nansha, Shenzhen Qianhai and Zhuhai Hengqin). The Shenzhen China channel has great economic and social significance. In the past five years, the butterfly transformation has been completed from the first pile to the pile foundation and bearing platform of the main bridge, which means that the deep and medium channel project brewing since 1998 has come to reality from paper, and the idea of flying over the East and west sides of the Pearl River by one bridge has come to reality. On October 25, Guo Wenhai, Secretary of Zhongshan municipal Party committee, led the members of the four sets of municipal teams, the main responsible comrades of towns, streets and departments to hold two entrepreneur representative symposiums in one day on the first working day after taking office in Zhongshan. It was specifically mentioned that Zhongshan has ushered in a historic opportunity for the construction of Shenzhen China Channel: Shenzhen China channel is the bright Avenue and Golden Avenue for Zhongshan to embrace Shenzhen and Hong Kong, It is a further open Kangzhuang Avenue in Zhongshan. The bridge era is coming. New opportunities are emerging and new reforms are unfolding. At present, the whole city of Zhongshan is seizing the opportunity, stepping up planning and layout, making full preparations, and starting a new journey in a sprint state. December 28, 2016: the construction of the main works of Shenzhen China corridor was started. May 1, 2017: the first steel cylinder of West artificial island was vibrated and sunk in place. September 18, 2017: the Western artificial island officially became an island, and the "sea kite" took off. December 21, 2017: the construction of East artificial island was officially started. June 5, 2019: the world's largest immersed tunnel smart factory was opened to prepare for the pouring of the first pipe joint of the deep and medium channel. June 27, 2019: the steel shell of the first pipe joint of the immersed tunnel was successfully shipped. July 5, 2019: the first steel hanging box of Lingdingyang bridge was successfully lowered. September 30, 2019: the steel hanging box of Zhongshan Bridge is lowered and transferred to the cushion cap construction stage. November 21, 2019: the first box girder was erected successfully. December 11, 2019: the pouring of the first steel shell immersed pipe "Big Mac" was completed and the longitudinal movement was successful. June 18, 2020: the docking of the first section of immersed pipe was successfully completed. August 30, 2020: all the cast-in-situ tunnels in the buried section of West rengong island have been poured. September 20, 2020: the excavation of the foundation pit of the East anchorage of Lingdingyang bridge, a control project, was completed. December 26, 2020: the first 1670t steel box girder was manufactured. April 3, 2021: the erection of the first steel box girder is completed. June 17, 2021: the East pylon of Lingdingyang bridge was capped. June 25, 2021: the first 60m concrete box girder is erected. June 26, 2021: the East artificial island was basically formed. July 19, 2021: the West Main Tower of Lingdingyang bridge was capped. September 15, 2021: the sinking and installation of immersed tunnel exceeded 2000 meters. September 22, 2021: the East Main Tower of Zhongshan Bridge was capped. September 29, 2021: the sinking and docking of E31 pipe joint of immersed tunnel was completed. (outlook new era)