Basic profile
Four years ago, the western suburbs of Harbin were still endless wasteland with weeds. With the spectacular highway cable-stayed bridge and the completion of the 36km ring highway, it has become a beautiful scenery in Harbin today. Convenient transportation has brought more people, goods and cars. This land, which has been silent for many years, is now buzzing ... The West Ring Project with a total investment of 265,438+89 million yuan is a key construction project in Heilongjiang Province during the Tenth Five-Year Plan period. Its completion will not only connect six expressway in Heilongjiang Province, improve the traffic speed, but also accelerate the economic development of Heilongjiang Province.
Songhuajiang Sifangtai Highway Bridge is located1.2km west of Sifangtai Highland in Daoli District, Harbin, with a total length of1268.86m. The main bridge is a steel-concrete composite beam cable-stayed bridge with twin towers and double cable planes. The tower pier is integral, and the tower and the main beam are supported longitudinally, which belongs to the semi-suspension system of tower pier consolidation and tower beam support. It consists of a main span with a length of 336m, two side spans with a length of 136m and two transition spans with a length of 44m, with a total length of 696m and a transverse width of 33.2m The approach bridge adopts a prestressed concrete continuous box girder structure with a span of 40m. The south and north approach bridges span *** 14, with a total length of 572.86m and a transverse width of 28 m. Sifangtai Bridge has a design speed of 120km/h, four lanes in both directions, and a design load of -20 for automobiles and-120 for trailers. The design flood frequency is once every 300 years, and the navigation standard is Class III waterway. The estimated total investment of the bridge is 466,543.8+0,000 yuan; From July, 200 1 year to September, 2004, the construction period is 4 years.
The foundation of Sifangtai Highway Bridge consists of 140 bored piles. The diameter of the bored pile of the main bridge is 2.0m, the length of the pile is 70.0m, the bearing length is 54.5m, the width is 15.0m, and the height is 5.0m. The pylon of this bridge is a portal tower with an upper beam above the deck. The tower height is 1 10.80m, and the height above the bridge deck is 88.56m The section of the cable tower is single box and single room, and the curved surface is pentagonal. The main girder section of the bridge consists of two I-shaped steel side beams and a small central longitudinal beam, which are combined with the concrete bridge deck to form a composite section. The stay cables are fan-shaped in space and incline to the outside of the bridge from bottom to top. The whole bridge is equipped with 4× 13 pairs, totaling 104 stay cables. The deck pavement adopts 8cm waterproof concrete and 6cm asphalt concrete. The main works of the whole bridge are 68,502 cubic meters of concrete, 7 127 tons of steel, 8,088 tons of steel, 559 tons of prestressed steel and 842 tons of stay cables (104).
Detailed introduction
West Ring Project: Perfecting the overall function of "OK" trunk highway network in Heilongjiang Province
According to reports, the completion of the West Ring Project can gradually improve the "OK" type main skeleton highway network in Heilongjiang Province and realize the goal of "one ring and five shots" highway system with Harbin as the axis.
It is reported that 1995, with the consent of the provincial government, has determined the layout of the trunk highway network in Heilongjiang Province: Harbin is the center to radiate the whole province, and five national highways from Tongjiang to Sanya, Suifenhe to Manzhouli, Heihe to Dalian, Hegang to Dalian, Harbin to Yichun and Hegang to Yichun 1 provincial highway form an "OK" type main skeleton system, and Harbin connects the regional center, industry and Yichun.
Engineering reasons
According to the introduction of the vehicle management department of Heilongjiang Province, the urban traffic trunk roads and suburban roads in Harbin have not yet formed a reasonable layout by the end of the 1990s.
There is an entrance 18 between the central area and the surrounding suburbs, which connects with expressway and undertakes external traffic. In the 1960s, in order to meet the needs of war preparation, two war preparation ferries were established at Shuangkoumian in the upper reaches of Songhua River and at the cement plant in the lower reaches, forming a "loop line" across the north and south of the river. However, due to the low technical standard and lack of formal ferry facilities, this "loop" cannot function normally. At present, both transit vehicles and traffic between surrounding satellite cities have to pass through Harbin urban area, which has caused great pressure on the main roads in the urban area, and the phenomenon of vehicle congestion and traffic congestion is extremely serious. Songhuajiang Highway Bridge and Binzhou Railway Sanshu Highway-Railway Bridge located in the central area of the city have become the throats of transit traffic and urban river-crossing traffic. At present, the traffic volume of the two bridges has soared to 23,625 vehicles and 6 1 1 vehicle per day. Due to the traffic jam on the main roads in the city, freight vehicles crossing into the downtown area have to take traffic control measures such as time limit and detour, which seriously affects the development of transportation efficiency.
Master Zhang from Jilin said that he traveled between Jilin and Daqing, because he had to go to Daqing through Harbin, and Harbin stipulated the time for trucks to enter the city, so the drivers who came early had to wait in the service area. After the completion of the West Ring Project, it is not necessary to enter Harbin with heavy traffic to go to other cities, which can not only improve the traffic speed, but also reduce the transportation cost.
Construction purpose
In order to give full play to Harbin's role as a highway transportation hub, the expressway system of "one ring and five shots" with Harbin as the axis was also determined, namely, expressway (one ring) passing through Harbin and expressway (five shots) radiating Changchun, Mudanjiang, Jiamusi, Suihua and Daqing from Harbin.
In recent years, with the acceleration of the construction of trunk highway network in the province, the traffic volume of highways in the province has increased greatly, and the congestion of various sections is very serious. According to the investigation of relevant departments, the proportion of highway passenger and freight volume in the comprehensive transportation volume increased from 56.3% and 56.5% to 78.7% and 67.5% respectively, and the turnover increased from 27.3% and 7. 1% to 5 1.4% and 13.5%. The traffic volume of Shuangcheng, Acheng, Hulan and satellite towns in the suburbs of Harbin within 30 kilometers has increased rapidly, with an average annual growth rate of about 15% in recent five years. The traffic flow from Harbin to Shuangcheng, Acheng, Binxian, Zhaodong and Lanxi reached 6600 vehicles/day, and the traffic flow from Harbin to Hulan reached 9650 vehicles/day. Including Harbin Highway, the traffic flow on Songhua River has reached 29,736 vehicles per day.
With the completion of Harbin Ring Expressway, this problem will be solved. At the same time, the Tongsan and Suiman trunk lines cut off by the Songhua River are reasonably connected in Harbin, and smoothly cross the Songhua River, connecting with the national highway Harbin, the provincial highway Harbin Airport Highway, and the highway from Harbin to Zhaozhou. The completion of the West Ring Project will further speed up the six expressway in Heilongjiang Province.
West Ring Project: More than 5,000 vehicles entering Harbin can be reduced every day, thus reducing urban congestion.
Engineering significance
The completion of this project not only makes the traffic builders who have worked hard for four years smile, but also the traffic police who have commanded traffic for many years are looking forward to this day. They said that after the completion of the project, the problem of transit vehicles in Harbin urban area can be solved, and more than 5,000 vehicles entering the urban area can be reduced every day, which not only effectively relieves the traffic tension in Harbin urban area, but also reduces the pollution of automobile exhaust emissions to the city.
Adjusting the layout of Harbin's productive forces and speeding up economic development.
relevant information
According to reports, the Ring Road will connect satellite towns, such as Dongfeng Town, Chenggaozi Town, Pingfang District and Wanggang Town, which are located on the edge of the central area, and connect Harbin-Binxian, Harbin-Acheng, Harbin-Wuchang, Harbin-Shuangcheng, Harbin-Taiping International Airport, Harbin-Daqing, Harbin-Hulan and Harbin-Suihua, and other major export roads. After the completion of the project, it will completely solve the problem of traffic difficulties in trunk highways, adjust the layout of productivity in Harbin and promote economic development.
Wang Chunsheng, deputy head of Daoli District, Harbin, told the reporter that the West Ring Project benefited Daoli District the most by setting connecting lines on the roads around Harbin. The economic advantages of Daoli District are all in the west. It is one of the first 100 pollution-free vegetable production bases in China. It supplies 200 million kilograms of vegetables to the market every year, of which 3,500 kilograms will be shipped to Beijing, Shanghai and Russia. With the completion of the West Ring Project, the transportation time of vehicles entering Harbin, Harbin and Harbin can be shortened at least 1 hour. The convenience of transportation will play a vital role in realizing agricultural industrialization, farmers' citizenization and rural urbanization in this area.
According to the interview, after the start of the West Ring Project, many investors turned their attention to this land, where the land price has increased by about 20% compared with the past. At present, Harbin Zhong Sheng Group is planning to build a leading agricultural industrialization project here, and the largest vegetable wholesale market in Heilongjiang Province is also being planned and designed. Zhao Dayong, a farmer who lives near this market, told reporters that after the market is completed, the trading volume of vegetables will increase several times. Next year, his family will expand the planting area and add new special varieties. He will work with the people of the whole country to run a well-off society in an all-round way.
The West Ring Project carries the hopes and dreams of more people!
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