Introduction of Chongqing Shuangbei Jialing River Bridge?

Chongqing Shuangbei Jialing River Bridge starts from Shuangbei Yang Shuang Road in Shapingba District of Chongqing and Shima River in Jiangbei District, and was opened to traffic on 20 15.

abstract

Shuangbei Jialing River Bridge starts from Shuangbei Yang Shuang Road in Shapingba District in the west and crosses Jiangbei Jialing River in the east. The total length of the bridge is 1927.5m, the length of the east approach bridge is 263.5m, the length of the west approach bridge is10/9m, and the length of the main bridge is 645m. The main bridge deck is 32.5 meters wide, with six lanes in both directions and a design speed of 60 km/h.

bridge construction

Shuangbei Jialing River Bridge is designed as a "twin towers" single cable plane cable-stayed bridge. The main bridge deck is 32.5 meters wide, with six lanes in both directions, a cable isolation belt of 5.5 meters in the middle and sidewalks of 2.5 meters in both sides. Granite anti-skid boards will be laid on the sidewalk, which is the widest of its kind in China, with a main span of 330 meters and the first span of its kind in China. The twin towers, one high and one low, are shaped like two Shimen bridges, one large and one small, which are connected in series. The bridge is connected with the Inner Ring Expressway by an overpass. The pier in the twin towers is supported by 24 piles driven under the river bed, and the deepest pile will be driven 30 meters below the river bed.

Environmental protection is the highlight of Shuangbei Jialing River Bridge. It is understood that the address of Shuangbei Jialing River Bridge has been changed many times in order not to affect the water intake from Jialing River by Liangtuo Waterworks. Domestic sewage generated during the construction period will be discharged into the municipal pipeline, and a 2-meter-high enclosure will be set around the construction site. The asphalt needed for the construction will not boil around the construction site, and the construction waste will be sent to the northern new area for treatment. After completion, the bridge will adopt the way of rain and sewage diversion to prevent sewage from flowing into Jialing River, and sound insulation walls will be set at both ends of the bridge.

work progress

On the morning of February 28th, 2008, another river-crossing bridge between Shapingba District and Jiangbei District-Shuangbei Jialing River Bridge was officially started.

20 13 At about 0: 00 a.m. on July 5th, the west bank side span of the bridge and the approach bridge closed smoothly.

20 13 In the early morning of August 8th, the main span of the bridge officially closed.

Before 20 15 Spring Festival travel rush, all main lines are accessible.

Detailed introduction

In July of 20 13, about 85% of the engineering quantity of Shuangbei Jialing River Bridge was completed, and the east approach bridge was closed in the middle of last month. On July 2, the west approach bridge completed the skeleton welding, and on July 4, the west approach bridge of Shuangbei Jialing River Bridge completed the concrete pouring, marking the formal closure of the side span of Shuangbei Jialing River Bridge. The final concrete pouring was carried out in the early morning of the 5th.

August 20 13, according to the relevant person in charge of Chongqing Construction Engineering Group's Double Beida Bridge Project Department, the closure length on the 8th is 4m, and it will take 4-5 hours if it goes smoothly. "I started staring at the weather forecast half a month ago and said it would rain. As a result, it didn't rain for several days." The person in charge said that the temperature around 27 degrees Celsius is the best time to seal the dragon, because it is most suitable for concrete solidification. However, the high temperature of about 40 degrees Celsius in Chongqing made the project department helpless, and the sudden cooling in the early morning of the 8 th was undoubtedly an excellent opportunity.

In addition to spending half a month cooling down, the project department also spent more than an hour waiting for the wind to weaken. It is understood that it was originally scheduled to start pouring concrete at 2 am on the 8 th. However, there was a sudden gale in the middle of the night, and the construction team members waiting on the bridge deck even stood unsteadily. For the sake of construction safety, it was not closed until the wind weakened at three in the morning. At 7: 30 in the morning, all the concrete was poured, which also means that the overall closure of Shuangbei Jialing River Bridge was successful. In addition, the person in charge said that the deck construction stage of Shuangbei Jialing River Bridge will be carried out next, including the lighting, signs and various devices of the main bridge, which is expected to be completed before the end of 10 at the earliest.

Traffic importance

Traffic travel

Shuangbei Jialing River Bridge is an important river crossing channel connecting Shapingba and Liangjiang New Area. After opening to traffic with the Shuangbei Tunnel under construction, it will add a passage for Chongqing University Town and shorten the distance between the western new town, the university town and Liangjiang New District. From the University Town to Jiangbei, it was shortened from 50 minutes to 15 minutes.

Regional integration

"The two double projects (note: Shuangbei Jialing River Bridge and Shuangbei Tunnel) will not only ease the traffic pressure in and out of the city, but also accelerate the urbanization process in this area outside the inner ring road and within the second ring road." Li Yong, director and researcher of the Regional Economic Research Center of Chongqing Academy of Social Sciences, said that Xiyong is one of the 2 1 large residential areas planned by the municipal government, and convenient transportation will undoubtedly accelerate the urbanization process of Xiyong Group.

Miao, executive deputy director of the Management Committee of West New Town in Shapingba District, said that with the closure of Shuangbei Bridge, the appreciation space of real estate near the two dual projects will rise. At the real estate promotion meeting held in Xiyong, four companies, including Longhu, have successfully signed contracts. "With the acceleration of real estate enterprises, the construction of Xiyong Commercial Center will also be accelerated. As one of the sub-centers of the city, Xiyong Group will be further upgraded due to its increasing popularity. "

At the same time, the two double projects have greatly shortened the distance between Xiyong area and other parts of the main city, and opened up the links between the western new city and the northern new district, airport and other areas. Vehicles traveling between the new city in the west of the sand area, the wellhead, the Shuangbei area and the northern new area will be directly accessible. In addition, Xiyong comprehensive transportation hub, which will be completed and put into use soon, can realize seamless transfer of public transportation, rail transit, long-distance buses, private cars and taxis, which will undoubtedly shorten the distance between Xiyong Microelectronics Industrial Park and Chongqing Airport and improve the development environment of the new city in the west.

Industrial pull

The raw materials and products of enterprises in Xiyong Microelectronics Park mainly enter and exit through the outer ring, and the highway transportation cost is high. After the two pairs of projects are opened to traffic, Xiyong Comprehensive Bonded Port Area and Cuntan Bonded Port Area will be integrated through the inner ring, "which can not only save transportation time, but also achieve the effect of reducing costs through cheap water transportation." Li Yong analyzed that through the combined transport of water and rail, seamless connection will be realized, and a logistics channel will be added for the enterprises organized by Xiyong Group. "With this advantage, more industrial and modern service industries will be gathered to transfer to the new city in the west to promote the rational distribution of industries." "These two pairs of projects will add a trump card for attracting investment in the western new city." Miao said that the new town in the west will introduce more measures to attract investment in view of the changes in location advantages.

The main line of this bridge can be opened to traffic

On February 13, Shuangbei Jialing River Bridge and Shuangbei Tunnel Project (hereinafter referred to as the two double projects) successfully passed the completion acceptance and were officially opened to traffic at 14:30 in the afternoon. Driving from University Town to Jiangbei will be shortened from 45 minutes to about 15 minutes. Two pairs of projects start from the west abutment of Xiyong Xiangyu Railway overpass bridge, cross the Chongqing-Suiyuan Expressway, pass through Laijiaqiao Interchange, Shuangbei Tunnel and Shuangbei West Interchange in turn, and then connect with ShuangBeida Bridge across Jialing River, connecting with the Shimahe Interchange in Jiangbei, an inner ring expressway, with a total investment of 4 billion yuan and a total length of about/kloc-0.2 km, of which the tunnel is 4.4 km long and the bridge is1.

It is understood that because the Shuangbei West Interchange connecting the bridge and the tunnel has not yet been completed, after opening to traffic, only the interchange between the University Town and Jiangbei Farm can be realized for the time being, and vehicles in both directions cannot get off at Shuangbei. The relevant person in charge of the Municipal Urban and Rural Construction Committee revealed that after the opening of the main line, the follow-up supporting facilities are under construction, and the specific completion time will be determined according to the construction progress.

As an important fast-track connecting the West New Town and Jiangbei District, the "Two Pairs" project will greatly alleviate the traffic pressure of the University Town Tunnel and Zhongliangshan Tunnel, greatly shorten the traffic time from Jiangbei to Xiyong Comprehensive Insurance Zone and University Town, realize the cross-river connection between Liangjiang New District and Xiyong Micro Power Park, and greatly promote the industrial integration and complementarity between the two places. At the same time, it also opens up another convenient passage for western Chongqing to quickly enter the main city, which is of great significance to accelerate the development of new urban development areas, urban function expansion areas and urban function core areas.

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