Jiashao River Crossing Highway Passage is a part of Changtai expressway (G 15W). After the opening of Jiashao Bridge, it marks the completion of Changtai Expressway (Changshu, Jiangsu-Taizhou, Zhejiang). The total cost of Jiashao River Crossing Passage is about 654.38+03.9 billion yuan, and the bridge investment is 6.35 billion yuan.
Jiashao River Crossing Project consists of three parts: Jiaxing has a 43-kilometer high-speed connecting line connecting the intersection of Shanghai-Hangzhou and Zhajiasu Expressway; Expressway 13km in Shaoxing, which meets Hangzhou-Ningbo Expressway and Shangsan Expressway. The middle part of crossing the river is Jiashao Bridge.
The total length of Jiashao Bridge is10.137km, which is one third of the length of Hangzhou Bay Bridge. The bridge deck is 40.5 meters wide, with 8 lanes and the design speed of100 km/h. Jiashao Bridge is the longest and widest multi-tower cable-stayed bridge in the world. The main bridge is 2680 meters long, with five main navigable lanes and a total width of 55.6 meters (including cable-stayed areas). The number of cable towers and the length and scale of main bridges rank first in the world.
The main bridge is composed of five continuous cable-stayed bridges, each with a span of 428 meters. The main navigation hole of the bridge can meet the navigation requirements of 3000-ton container ships. The bridge adopts large-diameter bored piles (with a diameter of 3.8m and a depth exceeding110m), and the concrete pouring quantity of a single pile exceeds1300m3, making it the largest single pile in the world.
Upon completion, Jiashao Bridge will connect Shanghai-Hangzhou Expressway, Zhajiasu Expressway, Hangpu Expressway, Hangzhou-Ningbo Expressway and Shangsan Expressway, and the journey from Shaoxing to Shanghai will be shortened by at least half compared with the original three hours, thus promoting the economic and social integration development in the Yangtze River Delta region.
The development of history
The construction of Jiashao Passage is a long-awaited popular project of Shaoxing and Jiaxing people. The preliminary work of this project starts from 1993. In 2000, with the care and support of the provincial party committee and government and the relevant departments of the state and province, and with the joint efforts of Jiashao and Shaoxing, the provincial government made a decision to build a cross-river highway channel project from Jiaxing to Shaoxing.
In June 2005, the National Development and Reform Commission approved the project proposal. From June 5, 2007 to February 2007, the project was approved by the National Development and Reform Commission. From June 5, 2008 to 10, the preliminary design of the project was approved by the Ministry of Transport. The construction of Jiashao Bridge and North-South Line marks that Jiashao River-crossing Highway Passage has officially entered the construction stage. Jiaxing-Shaoxing river-crossing highway is 69.5 kilometers long, of which Jiashao Bridge is 10. 137 kilometers long. The bridge starts from Guzhu Hub in the south and ends at Nanhu Hub in the north, with the design speed of 100km/h[4] and the speed limit of the north-south connection of120 km/h. * * * There are 7 interchange entrances and exits in Wangdian, Baibu, Shi Xia, Yuan Hua, Jianshan, Binhai New Town North Interchange and Binhai New Town South Interchange. After the completion of the bridge, it will greatly shorten the time and space distance between the two sides of Hangzhou Bay, give full play to Shanghai's leading role, promote the construction of industrial belt around Hangzhou Bay, enhance regional competitiveness, greatly promote economic integration and industrial structure adjustment and upgrading in the Yangtze River Delta, and achieve remarkable social and economic benefits.
architectural feature
Jiashao River Crossing Project starts from Haining in Jiaxing in the north and connects Shangyu in Shaoxing in the south. It consists of three parts: a 43-kilometer high-speed connecting line connecting the intersection of Shanghai-Hangzhou and Zhajiasu Expressway; Shaoxing has 13 km expressway, which meets Hangzhou-Ningbo and Shangsan-expressway. The middle part of crossing the river is Jiashao Bridge.
Compared with the 36-kilometer-long Hangzhou Bay Bridge, the span distance of Jiashao Bridge is much shorter, and the bridge length is only 10 km, which is only 1/3 of Hangzhou Bay Bridge. However, the bridge deck is more spacious From design to final planning, the bridge deck width is 40.5 meters, from 6 lanes to 8 lanes, and the bridge design speed is100 km/h.
Jiashao Bridge adopts typical cable-stayed bridge design. The main bridge is composed of five-span and six-tower continuous cable-stayed bridges, with each span of 428 meters. The pylon of the suspended cable bridge adopts the same single column design as that of the third Qianjiang Bridge, except that both sides of the third Qianjiang Bridge are suspended, while the Jiashao River-crossing Bridge is suspended on all sides, which is more majestic in shape. It is understood that this technology and modeling of the bridge is the first time in China. After completion, the main navigation hole of the bridge can meet the navigation needs of 3000-ton container ships.
Innovative technology
The longest and widest multi-tower cable-stayed bridge in the world
The main channel bridge of the bridge adopts the scheme of 6-tower single-column cable-stayed bridge with the highest technical content (at present, most of the multi-tower cable-stayed bridges built at home and abroad are 3 towers), which makes the length of the main bridge reach 2680 meters, divided into 5 main channels, and the number of cable towers and the length scale of the main bridge rank first in the world; The bridge adopts two-way eight-lane expressway standard, and the total width of the main bridge is 55.6m (including Buso area).
The largest diameter pile in the world
Large-diameter bored piles (3.8m in diameter and over 1 10m in depth) are widely used in approach bridges in underwater areas, and the concrete pouring quantity of a single pile exceeds 1300m3, making it the largest single pile in the world at present. At the same time, the capping on the dock was cancelled.
Unique mid-span rigid hinge structure
In order to solve the problem of temperature deformation of long truss scientifically and reasonably, an innovative structural system with full-span rigid hinge device is adopted, which is unique in the world.
Bridge construction situation
Jiashao Bridge was successfully closed on February 3, 20 13, and some finishing works such as deck paving, traffic lighting, greening, temporary structure demolition and supporting management facilities construction are being carried out in the later stage. At present, the bridge maintenance area can be put into normal use, and the service area is still in the basic construction stage. According to reports, at the beginning of the road opening, there will be temporary tankers in the service area, but only 93 # gasoline and 0 # diesel will be provided.
On July 6, 20 13, Jiashao Bridge project passed the handover acceptance and was open to traffic. 18 At 8: 58am on July 6th, the bridge headquarters will hold an opening ceremony at the main pier of Z8 Bridge, and it will be officially opened to social vehicles at 0: 00am on July 9th.
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