Sany Heavy Industry: New Progress! The world's first "Zhang Jinggao" Yangtze River Bridge has entered full construction.

Zhang Jinggao Yangtze River Bridge is clearly defined by the National Development and Reform Commission.“Fourteen five”During this period, we will focus on promoting the project of crossing the river.，It connects Zhangjiagang, Suzhou、Nantong Rugao，The total length is about 29.8 kilometers。Among，The river-crossing section is 7859 meters long.，Including two channel bridges，They are the South Channel Bridge with a main span of 2300 meters and the North Channel Bridge with a main span of 1208 meters.，The South Channel Bridge will become the world's largest span bridge after its completion.。

The anchor foundation of the south channel bridge of Zhangjinggao Changjiang River Bridge adopts the composite diaphragm wall foundation with support and structure.，It is the first in the world，This is the most difficult key control node of the whole bridge technology.。The south anchorage diaphragm wall is divided into 94 Phase I trench sections.、104 Phase II slot sections。Steel box structure is adopted for the trough section of Phase I.，Reinforcement cage structure is adopted for the second-stage trough section.。SCC15000TM-The Crawler Crane is used to lift the steel box and reinforcement cage。

Mr. Zhu, the project manager of CCCC Second Harbor Engineering Co., Ltd., said.：“Large amount of welding for steel box manufacturing、Transport segment length，The structure is easy to collide、Difficulties such as easy deformation during hoisting，The headquarters requires the construction and hoisting units of steel boxes to strictly control the quality of hoisting equipment.。Yes, transshipment、Loading、Unload、Precise measurement and calculation of lifting lug placement and other links，Make every effort to ensure the lifting operation of the diaphragm wall steel box。”

Operator Wang Feige said：“A single steel box weighs up to 370 tons.，The equipment should not only ensure that it can be lifted.、Hang far，But also extremely stable.，So as to avoid deformation of the steel box due to excessive shaking during lifting.。”

To ensure the smooth hoisting of the steel box，This hoistingSCC15000TM-1 Use 60mWorking condition of super wide arm，Belt 500tHook，Span 16m。SCC15000TM-1 Powerful performance，Carry wide arm technology，Load capacity beyond two-arm condition，At the same time, the disassembly and assembly efficiency is improved by 50%Above。

Wang Feige said：“In the process of hoisting，This 1000-ton has not dropped the chain at all.，Play steadily，The hoisting task was well completed.，The experience has been accumulated for the formal start of the steel box hoisting of the north anchorage diaphragm wall。”

As a“Bridge of technology、Bridge of innovation”，Zhang Jinggao is the envoy of the Yangtze River Bridge“China Bridge”Breaking through the 2000 meter span barrier for the first time，In the new structure、Continuous breakthroughs in new technologies，Fill in many technical gaps at home and abroad，It has greatly enhanced the global influence of Chinese bridge brands.。The bridge is scheduled to open to traffic in June 2028.，After completion, it will be closer to Suzhou.、Nantong、Space-time distance of three cities in Taizhou，Promoting regional integration in the Yangtze River Delta。

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