What is the difference between the ten most "Chinese business cards" in the world, which are the ten most "Chinese business cards" that cross the clouds and break the sea in the Lingdingyang area of the Shenzhong Passage?
2024-06-27
In early June of summer, the Shenzhong Passage has penetrated through clouds and broken through the sea, stepping on the waves. After the official opening and operation at the end of this month, it only takes half an hour to drive from Shenzhen to Zhongshan. "The Shenzhen China Corridor is a demonstration project for China to promote the 'Safe and Safe Centenary Quality Project', a business card project representing China's national image, and a major benchmark project to help China achieve the goal of becoming a 'transportation powerhouse'." Song Shenyou, Director and Chief Engineer of the Shenzhong Channel Management Center, said so. As a world-class super project in the Guangdong Hong Kong Macao Greater Bay Area, what are the outstanding features of the Shenzhen China Channel? How can this cross sea passage, which combines ten of the world's best, provide Guangdong experience and Chinese solutions for global transportation? Core materials, key technologies, and the Shenzhong Passage of the Great Power Heavy Industries are approximately 30 kilometers north of the Humen Bridge and 31 kilometers south of the Hong Kong Zhuhai Macao Bridge. It starts from the Shenzhen Airport Interchange and crosses the Lingdingyang Sea to the west. It connects with the Nanzhong Expressway through the Wanqingsha Interchange and lands on Ma'an Island in Zhongshan City, connecting with the Zhongkai Expressway. The project integrates "bridge island tunnel underwater interchange", with a total length of about 24 kilometers, and is one of the most difficult cross sea cluster projects in the world for comprehensive construction. As an extraordinary super engineering project, the Shenzhong Passage has successfully transformed advanced concepts of bridges, islands, tunnels, and underwater interconnectivity from theory to practice, opening a new chapter for global transportation development. The secret behind it has eight words: demand driven, innovation driven. The Shenzhong Corridor has innovated a new paradigm for cross sea transportation cluster engineering management, constructed a modern engineering construction management system, and achieved "first-class management"; We have fully promoted industrial and intelligent construction, developed and developed 15 world first core materials, key technologies, and major national weapons. We have overcome the technical difficulties in areas such as offshore ultra large span suspension bridges and offshore ultra wide steel shell immersed tube tunnels, and systematically innovated the construction technology of offshore ultra large span suspension bridges and the floating installation process of offshore ultra large scale immersed tube joints, supporting the high-quality, high-precision, and high-efficiency construction of deep and medium channels, forming a "first-class technology"; By implementing refined management and high-quality construction, we have achieved five breakthrough leading "deep and medium quality" in the world's first bidirectional eight lane underwater tunnel, the world's largest span offshore mid sea suspension bridge, and the world's first underwater hub interchange, creating "first-class facilities"; We have cultivated a group of high-quality talent and innovative teams for the construction of cross sea transportation clusters, providing Guangdong experience and Chinese solutions for the world's cross sea channel projects. The largest and longest seabed at sea is located in the bay area on the vast Lingding Ocean. Faced with harsh and complex marine environments such as high temperature, high humidity, high salinity, and frequent strong typhoons, the Deep Middle Channel has developed a combined pneumatic control technology of "integral steel box girder+horizontal guide plate+upper stable plate+high ventilation rate railing". It has pioneered the self balancing and flexible new type of offshore giant anchorage rapid construction technology of "locking steel pipe piles+I-shaped sheet piles+parallel steel wire cables+ground connecting walls" in complex sea areas. It has also developed a double-sided submerged arc full penetration welding joint for orthogonal steel bridge deck U-ribs, and developed durable steel wires and cable strands with a zinc aluminum multi-element alloy coating of ± 6mm-2060MPa. With the help of intelligent installation technology, China has developed for the first time an integrated intelligent tower building crane for ultra-high bridge towers, and built the world's largest span offshore mid sea suspension bridge, Further consolidate the leading position in the construction technology of China's offshore super long span suspension bridges. In complex sea conditions, the Deep China Passage has built the world's longest and widest underwater steel shell concrete immersed tube tunnel, breaking through foreign technological blockades and overcoming world-class challenges. For the first time, a new combination structure of a standard section with 8 lanes in both directions and a widened section with 10 lanes in both directions for a deep buried steel shell concrete immersed tube tunnel across the sea was proposed, filling the industry gap and achieving a breakthrough in the bending and shear design method of compartment type steel shell concrete structures from 0 to 1. The results were included in the industry standards; Invented a method for pressing and installing the push out final joint of immersed tube tunnels; Pioneered the industrialization and digital intelligent construction system for large-scale steel shell immersed pipes; Developed the world's first ultra large pipe section self-propelled floating installation integrated ship; A new technology for treating the foundation of immersed tube tunnels using a combination of large-diameter deep cement mixing piles and double-layer cushion layers under deep marine mud geological conditions has been proposed for the first time. We have created multiple world records, including one section/month for steel shell immersed tube manufacturing, one section/month for pouring, installation of two sections at the same window, and simultaneous sinking of two sections/month for six consecutive months. We have also achieved millimeter level installation accuracy for immersed tubes at a depth of 40 meters, and innovated the floating installation technology for ultra wide and wide offshore immersed tube tunnels. "The construction of the Shenzhen China Channel, with an open mind, learns from and draws on advanced international concepts and technological achievements, takes independent innovation of key technologies and the transformation and application of scientific and technological achievements as its own responsibility, firmly grasps the leadership of innovation and the initiative of development in its own hands, and provides a successful example for China's cross-border transportation cluster engineering construction to achieve self-reliance and self-improvement." Song Shenyou said. 1. The world's largest offshore steel box girder suspension bridge with a main span of 1666 meters. 2. The world's highest navigable net height Haizhong Bridge (with a navigable net height of 76.5 meters). 3. The anchorage of the suspension bridge in the world's largest sea (with a single anchorage concrete volume of approximately 344000 cubic meters). 4. The world's highest wind resistance test wind speed for suspension bridges (maximum flutter test wind speed of 83.7 m/s). 5. The world's largest steel bridge deck is paved with hot mix epoxy asphalt (with an area of 378800 square meters). Steel shell concrete immersed tube tunnel project 6. The world's longest bidirectional eight lane underwater immersed tube tunnel (5035 meters long, with 32 pipe joints and 1 final joint). 7. The world's widest underwater steel shell concrete immersed tube tunnel [standard pipe section length 165 meters, width 46 meters (maximum width 55.6 meters), height 10.6 meters]. 8. The world's largest single volume pouring of steel shell immersed tube self compacting concrete (the pouring volume of single standard pipe section concrete reaches 29000 cubic meters, with a cumulative volume of 910000 cubic meters). 9. The world's first underwater highway hub interchange - airport interchange. 10. The world's widest (3 meters) foldable M-shaped waterstop should be used for the final joint of sunken pipes. (Lai Xin She)
Edit：Lubaikang Responsible editor：Chenze
Source：news.ycwb.com
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