On January 4, 2022, with the start of the steel pile of the main tower, the world's first double-deck cable-suspension cooperative system bridge invested by Tongling Comprehensive Transportation Investment Group Co., LTD., designed by China Railway Bridge Institute and constructed by China Railway Bridge Bureau -- G3 Tongling Yangtze River Railway Bridge officially started!

　 On January 4, the first working day of the New Year, the mobilization meeting for the first batch of major projects in the province in 2022 was held in Hefei。Zheng Zhajie, Secretary of the Anhui Provincial Party Committee, announced the start of construction, Wang Qingxian, deputy secretary of the Provincial Party Committee and governor, spoke, and Tang Liangzhi, secretary of the Party Group of the Provincial CPPCC attended。A total of 731 major projects have been started, and the G3 Tongling Yangtze River Bridge is a key project in Anhui Province。After the commencement ceremony, the G3 Tongling Yangtze River Railway Bridge construction promotion meeting was held in Tongling City。Deputy Secretary of Tongling Municipal Party Committee and Mayor Kong Tao attended the meeting and made an important speech, Wen Wusong, Party Secretary and chairman of China Railway Bridge Bureau, and Tian Daoming, general manager of China Railway Bridge Institute, attended the meeting。The meeting was chaired by Huang Xuelong, Vice mayor of Tongling City。

　 In his speech, Kong Tao pointed out that Tongling is a city along the river and has special feelings for the bridge。G3 Tongling Yangtze River Railway Bridge construction started, opened a new chapter in the development of Tongling city。The bridge is of great significance to enhance the city's comprehensive competitiveness and external image。It is hoped that all parties involved in the project, with a high sense of responsibility and mission, will devote themselves to the construction of G3 Tongling Yangtze River Highway and Railway Bridge for the long-term plan and grandchildren, so that this landmark project will benefit the people of the city as soon as possible and realize the "three Bridges dream" of Tongling as soon as possible.。

　 Kong Tao stressed that G3 Tongling Yangtze River Railway Bridge is the largest single investment project since the construction of Tongling City, the bridge has set many "world first" records, technical difficulty and construction requirements are very high。All participating units should go all out to build the G3 Tongling Yangtze River Highway and Railway Bridge into a high-quality project, an efficient project, a safe project, and a clean project。

　 Wen Wusong pointed out in his speech that Tongling is the fertile soil that nourishes the growth of China Railway Bridge Bureau。12 years ago, with the care and support of Tongling Municipal Committee and government, China Railway Bridge Bureau had the honor to participate in the construction of Tongling Yangtze River Highway and Railway dual-purpose Bridge of Hefu high-speed Railway, and built a quality project that won the National gold medal of Quality engineering for the people of Tongling in 5 years。今天，China Railway Bridge Bureau once again set foot on the hot land of Tongling，The construction of G3 Tongling Yangtze River Railway Bridge is a world-class project and people's livelihood project，This is the trust and love of Tongling Municipal Government for the Bridge Bureau，It is also the bridge Bureau actively serving the development strategy of the Yangtze River Economic Belt，It is an important embodiment of Tongling's transportation infrastructure and economic and social development。

　 Wen Musong said，China Railway Bridge Bureau will be under the correct leadership of Tongling Municipal Government，Under the guidance of the city Trading Group，It is guaranteed by strong technical force and perfect management system，Adhering to the enterprise spirit of "transcending the natural gap beyond self"，Inherit the fine tradition of "adhering to quality, inheriting and innovating"，Carry forward "special can endure hardship，Special fighting ability，Special dedication，Especially innovative "work style，Strict performance of contract，Conscientiously implement management regulations，Accept the supervision of supervision units and all sectors of society。We will earnestly implement the new vision for development，According to schedule requirements and project characteristics，Scientifically organized and carefully arranged，We will strengthen resource allocation, process control, and technological innovation，Promote project construction with high starting point, high standard and high quality，Strive to create quality projects, safety projects, green projects, innovative projects, clean projects，A satisfactory answer for the people of Tongling，For Tongling infrastructure construction to make new contributions and take responsibility again!

　 At the meeting, China Railway Bridge Bureau and Tongling City Trading Group held the construction contract signing ceremony of G3 Tongling Yangtze River Railway Bridge。

　 On the afternoon of the 4th, China Railway Bridge Bureau held a G3 Tongling Yangtze River Railway Bridge project Department to mobilize the construction of the G3 Tongling Yangtze River Railway Bridge。He Chenglong, Party secretary and chairman of Tongling City Investment Group, Wen Wusong, Party Secretary and chairman of China Railway Bridge Bureau, Tian Daoming, general manager of China Railway Bridge Institute, heads of various departments of China Railway Bridge Bureau, the main leaders of four companies and members of the leading team of the project Department attended the meeting。The meeting was presided over by Ji Yuehua, business manager of China Railway Bridge Bureau。

　 会上，He Chenglong said，G3 Tongling Yangtze River Highway and Railway Bridge is an important project for Tongling City to implement the integrated development strategy of Yangtze River Delta and realize the cross-river development，It is also the largest investment project since Tongling city was built，It doesn't just belong to Tongling，Also belong to the motherland，It is hoped that the design and construction units of the bridge will raise the political position，Unity of thought，Build Bridges with emotion，Build the bridge into a fine project，Build a project with temperature。Tongling Equity Group will take the nanny sentiment, the good service of construction enterprises as the work goal, and constantly improve the service level to ensure the steady progress of the project。

　 Wen Musong said，Anhui is a blessed place for the development of bridge Bureau，It is the second hometown of the Bridge people，China Railway Bridge Bureau has built a number of representative and typical Bridges in Anhui, such as Wuhu Yangtze River Bridge, Maanshan Yangtze River Bridge and Tongling Yangtze River Bridge，"Eight hundred Li Wan River" left countless bridge people's footprints and sweat，And left behind a love for this fertile land。China Railway Bridge Bureau will always insist on building the bridge with "love", with a grateful heart, and build the G3 Tongling Yangtze River Highway and Railway Bridge well in the expectation and praise of the people of Tongling。Insist on using "new" to build Bridges，The construction of double-layer cable-suspension cooperation system of Tongling Yangtze River Railway Bridge is the first in the world，Unprecedented challenge，The Bridge Bureau will continue to follow the path of innovation，In the past 70 years, the technology of the group company has accumulated steadily，To create an innovative and distinctive Tongling Yangtze River railway bridge。Adhere to the use of "law" to build Bridges, will be scientific, pragmatic, rigorous style to promote the construction of Tongling Yangtze River Bridge, strengthen the project "before, during and after" safety control, create safety projects and demonstration projects。

　 G3 Tongling Yangtze River Railway Bridge is designed as a cable-stayed suspension system bridge with a main span of 988 meters。The bridge starts from Huayuan Village, Chenyaohu Town, Tongling City, crosses the Yangtze River, passes through Yangshanji, and ends at the ethnic village, Datong Town, Tongling City, with a total length of 11.88 kilometers, with "highway, intercity railway, freight railway" three river crossing functions。The upper deck of the bridge is arranged as a 6-lane highway with a design speed of 100 km/h。The lower deck is arranged for 4 lines of railway, of which 2 lines are Hechi intercity railway, with a designed speed of 250 km/h;Line 2 is Tongling South to Jiangbei Port railway, later extended to Zongyang, connecting with Anqing, with a design speed of 120 km/h。

　 Double-deck cable-suspension bridge -- As the world's first double-deck cable-suspension bridge, the construction results of this bridge will accumulate valuable experience for the construction of similar Bridges in China in the future。 Cable-stayed bridge and suspension bridge have their own advantages. Generally speaking, cable-stayed bridge is less prone to deformation under heavy pressure than suspension bridge under the same conditions, so the vehicle passing through is better.Compared with cable-stayed Bridges, suspension Bridges have better span, so the span is easier to enlarge。 The cable-suspension cooperation system absorbs the characteristics of the two structural bridge types, and the advantages are particularly obvious in the long span and heavy load Bridges at the kilometer level. Compared with the single structural bridge type, the span is easier to expand under the same materials and processes, and the high-speed railway bridge crossing has better ride comfort and higher safety。High-speed rail is fast and has high requirements for the smoothness of the road, even if the deformation of the track is not seen by the naked eye, it may cause serious consequences。

　 G3 Tongling Yangtze River Highway and Railway Bridge is one of the river passages planned in the Yangtze River Trunk Passage Layout Plan (2020-2035). It is a key project to implement the national "Belt and Road", Yangtze River Economic Belt and Yangtze River Delta integration development strategy, and is also a major infrastructure construction project in Anhui Province。The construction of the bridge is conducive to improving the national and Anhui expressway networks, improving the capacity of regional river crossings, playing the central role of Anhui River connecting east and west, connecting Yangtze River Delta and Sichuan, Chongqing, Hubei and Jiangxi, promoting the optimal development of regional traffic and improving the layout of river crossings。