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The northeast region of the mainland can be simply summarized into Liaoning Province, Jilin Province, Heilongjiang Province, Inner Mongolia Autonomous Region four major regions, and in these areas, the transportation network is still relatively perfect, especially bridges, the number of bridges in the northeast is also relatively large.
The topography and landforms of the Northeast region are quite complex, mainly covering different topographic features such as mountains, hills, plains and swamps. Among them, rivers such as Heilongjiang and Songhua River pass through them, forming rich water system resources.
However, the mountainous and hilly areas traversed by these rivers are often precipitous and rapid, which brings considerable challenges to bridge construction. For example, the mountainous terrain of Jilin Province is complex, with high mountains and deep valleys, and narrow river surfaces, and many technical difficulties need to be overcome when building a bridge across the river.
However, it is precisely this topography that makes the construction of bridges in Northeast China extremely valuable and significant. Bridge construction can promote the economic development of the northeast region.
For example, the Songwon Chagan Lake Friendship Bridge, completed in 2019, has a total length of 339 meters, connecting the two shores of Chagan Lake, promoting local tourism and agricultural development, and injecting new vitality into the local economy.
Bridge construction can also improve traffic conditions and shorten the time and space distance between regions. For example, the Daguang Expressway on the Songwon-Daqing Expressway spans the Songhuajiang Bridge with a total length of 14.7 kilometers, connecting the two cities of Daqing and Songwon, shortening the travel time between the two places and facilitating transportation along the route.
Netizens have said that there are many famous bridges in the northeast, and then these famous bridges were ranked, and the most popular bridges are actually these three bridges, I don't know if you agree, welcome to leave different views and views in the comment area.
One of the famous bridges in the northeast region - Songhua River Bridge
Located in Harbin, Heilongjiang Province, China, Songhua River Bridge is an important bridge connecting the north and south banks of the Songhua River and one of the important transportation hubs in Northeast China.
With a total length of 1,198 meters and a width of 24 meters, the Songhua River Bridge is a two-way 10-lane bridge. The bridge adopts concrete box girder and prefabricated structure, the superstructure is steel beam, and the substructure is gravity piers and bored pile foundation. The bridge is designed for a road load class and has a design speed of 120 km/h.
The construction of the Songhua River Bridge began in May 1983, the main project of the bridge was completed in 1985, and it was officially opened to traffic on September 20, 1986.
During the construction process, the bridge has been tested by natural disasters such as floods and earthquakes many times, but it still maintains high stability. During May Day in 2005, the bridge underwent comprehensive repairs and reinforcements to ensure its safety and durability.
The construction of the Songhua River Bridge is difficult, mainly because the bridge needs to cross the Songhua River, one of the main rivers in the northeast region, with large flow, high water level, and complex geological conditions on both sides.
In addition, the bridge is also located in the heart of Harbin city, and the impact of urban traffic and citizens' lives needs to be considered during construction. Therefore, the construction of the bridge required overcoming various technical and engineering difficulties.
The construction of the Songhua River Bridge not only facilitates the travel and material exchange of citizens, but also becomes one of the landmark buildings in Harbin. The construction of the bridge represents the level of construction and development in the northeast region and demonstrates China's economic and technological strength.
In addition, the century-old Songhua River Bridge is also one of the important attractions of urban tourism, attracting a large number of tourists to come for sightseeing and tourism, and everyone comes to visit this century-old bridge.
One of the famous bridges in Northeast China - Liaohe Special Bridge
Located in Panjin City, Liaoning Province, the Liaohe Special Bridge is the longest cross-river highway bridge in northeast China, and the first steel bridge in China with a span of more than a kilometer.
The total length of the Liaohe Special Bridge is 3.326km, the main bridge span is 64.5+150.5+436+150.5+64.5 m, the width is 32.5 meters, the main tower height is 50 meters, and the bridge deck thickness is 2.0 meters. The bridge has six lanes in both directions and is designed for a speed of 80 kilometers per hour.
The construction of the Liaohe Special Bridge began in 2008 and took two years to complete and open to traffic. The bridge was built by China Communications Construction Group Co., Ltd., and the design scheme and construction unit were selected by international public bidding. During the construction process, the project team adopted advanced GPS satellite positioning system and measurement technology to ensure the precise positioning and linear control of the bridge.
The construction of the Liaohe Special Bridge is difficult, the bridge is located in the northeast region, the climate is cold, the winter is long and cold, which brings great inconvenience to the construction. The Liaohe Special Bridge is a leapfrog project in the history of highway bridge construction, and there are many technical problems that need to be solved, such as the design and construction of complex structures such as large spans, high piers, and curved segments.
During the construction of the bridge, it is necessary to pass through dense cities and rivers with dense traffic, and it is necessary to coordinate all aspects of work to ensure smooth and safe traffic during construction. The construction of the Liaohe Special Bridge not only has important transportation and economic significance, but also has strong social significance.
The construction of the bridge has improved the travel conditions of local residents and improved the quality of life of local residents. At the same time, the construction of the bridge also provides a large number of employment opportunities and injects new impetus into the local economic development.
As one of the longest cross-river highway bridges in Northeast China, the Liaohe Special Bridge has a very important status and role. The construction of the Liaohe Special Bridge has also provided strong support for the development of China's bridge industry.
One of the famous bridges in Northeast China - Dalian Bay Bridge
Dalian Bay Bridge is a cross-sea bridge in Dalian, Liaoning Province, China, connecting Ganjingzi District and Jinzhou District of Dalian City, with a total length of 3000 meters, of which the length of the main bridge is 1680 meters, the length of the approach bridge is 1320 meters, the width of the bridge deck is 30 meters, the two-way six-lane area, and the design speed is 80 kilometers per hour. The bridge adopts a suspension bridge design scheme to adapt to the complex marine environment of Dalian Bay.
Construction of the Dalian Bay Bridge began in 2011 and took four years to complete, making it one of the longest cross-sea bridges in China. The total construction fund of the bridge is 30 billion yuan, of which the central government has provided 10 billion yuan in loan funds and the Liaoning provincial government has provided 20 billion yuan in construction funds.
The construction of the Dalian Bay Bridge is very difficult, and it is necessary to overcome various unfavorable conditions such as wind, wave, tide and current in the marine environment. The construction of the bridge involved marine soil foundation engineering, which required to solve technical problems such as pile foundation construction in shallow beach areas.
The piles and piers of the bridge are constructed with steel casings to avoid seawater corrosion and ensure construction safety. The bridge's main cable uses high-strength steel wire and durable coatings to accommodate corrosion from seawater and ultraviolet radiation in the marine environment.
The construction of the Dalian Bay Bridge is of great significance, it connects the eastern and western districts of Dalian, shortens the distance between Ganjingzi District and Jinzhou District, and effectively alleviates the traffic tension in Dalian.
In addition, the construction of the bridge is also conducive to promoting the economic development of Dalian and improving the investment environment, enhancing the overall competitiveness of Dalian. The construction of the bridge is also conducive to promoting the rapid development of tourism in Dalian, attracting more tourists to visit.
summary
To get rich, build roads first, the mainland is adhering to this sentence, has been doing infrastructure work, so far the mainland's bridge construction technology, has been different from the past, bridge building technology has long entered the world's advanced level of the ranks.
Now the mainland also has a well-known name at home and abroad - infrastructure madness, which company is strong in the world's infrastructure, Blue Star Asia is looking for China, so the mainland's infrastructure level has been recognized by the world, and it also proves that the mainland's comprehensive strength is constantly getting stronger.
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