Qingdao Bay Bridge, with a total design length of 35.4 kilometers, is the second sea-crossing bridge in the world. It is expected to be completed by the end of 20 10 and officially opened to traffic on 201. Qingdao Bay Bridge is designed with three ports: Huangdao, Licang and Hongdao. Jiaozhou put forward a plan to build the Jiaozhou connecting line of the Bay Bridge, which was affirmed and supported by the Qingdao Municipal Government.
Jiaozhou connecting line adopts Hongdao interchange style. A Y-shaped interchange will be built on the west side of Daguhe Waterway Bridge of Bay Bridge, connecting new industrial district in Jiaozhou Bay to the west, with a length of about 2,630 meters, of which the bridge is 2,600 meters long and the subgrade is 300 meters long and 23.5 meters wide. The connecting line is two-way and four lanes. According to the urban first-class roads, basic earthquake intensity and fortification standard VI, the design flood frequency is once every 300 years. The ramp is 5.3km long, with two lanes in one direction and a width of10m. All of them are bridge structures, and the project cost is estimated to be 764 million yuan, which will be opened to traffic simultaneously with the main line of the Bay Bridge.
The Bay Bridge connecting Qingdao, Huangdao and Hongdao was officially opened to traffic on the morning of June 30th 10, and the first phase of the Qingdao urban area wiring project of the Bay Bridge was completed simultaneously on 20 1 1. On June 27th, 2009, Qingdao Planning Bureau publicized the planning scheme of urban wiring project of Bay Bridge. The first phase of the project starts from Qingdao Bay Bridge, runs along Licun River and Zhang Cun River, and ends at Haier Road, with a total length of 7.6 kilometers and eight lanes in both directions. Upon completion, it will become the first eight-lane urban expressway in Qingdao. It is reported that the total investment of the first-phase wiring project is about 3,672.55 million yuan, and the construction period of the project is 18 months, which has started.
On June 27th, 2009, 165438+ In the publicity hall of Qingdao Planning Bureau, the planning scheme of urban wiring project of Qingdao Bay Bridge was publicized to the public to listen to opinions and suggestions from all walks of life. The publicity content includes four overpasses of urban wiring project and the overall trend map of the project.
The reporter saw from the planning scheme that the upcoming urban wiring project is a two-way eight-lane expressway leading to the urban area. The urban wiring project of Qingdao Bay Bridge is designed by the Municipal Engineering Design and Research Institute.
According to the personnel who presided over the design by the Municipal Engineering Design Institute, the wiring project of the Bay Bridge continued the deck width of the Bay Bridge, and the design adopted two-way eight lanes. "In the expressways under construction and completed in this city, the number of lanes does not exceed two-way six lanes, and the urban wiring project will become the first eight-lane urban expressway in Qingdao." The staff said that the design idea of urban wiring project is advanced, and the two-way eight-lane design can not only effectively improve the overall road capacity, but also add an 8000-meter landscape Shinkansen to Qingdao after completion.
The Bay Bridge goes straight to Haier Road.
According to the planning scheme, the urban wiring project of the Bay Bridge is the main relief road of Qingdao Bay Bridge. As early as 2006, the city carefully studied the wiring project. The first phase of the project starts from Qingdao Bay Bridge, along Licun River and Zhang Cun River, and ends at Haier Road, with a total length of 7.6 kilometers. In order to actively promote the project construction process, the Municipal Planning Bureau has issued site selection opinions and approved the planning scheme. It is planned to start construction this year, and 20 10 and the Bay Bridge will be completed and opened to traffic.
According to reports, the urban wiring project runs along the north bank of Licun River to Zhang Cun River, which ensures the highway standard, avoids repeated penetration along the river, and reduces the impact of piers on river flood discharge. The connection project of the Bay Bridge passes through Licang, Sifang, Shibei and Laoshan. As an important "one horizontal" in the "three vertical and four horizontal" expressway network of the island city, it will carry the function of traffic artery.
In the bridge wiring project, the planning and design unit designed four overpasses along * * * *, namely Liu Si Road Overpass, Chongqing Road Overpass, Heilongjiang Road Overpass and Haier Road Overpass. The designer said that the choice of overpass fully considered the functional orientation of the intersection road. On the basis of traffic analysis, different overpass forms are adopted for different traffic nodes.
Among them, Liusi Interchange is designed as a two-story semi-rhombic interchange. On the basis of making full use of the present situation of Shengli Bridge, cross Zhengzhou Road and Liusizhong Branch Road to ensure the smooth traffic of the two main lines in a straight line direction; Chongqing Road Interchange is located at the intersection of two expressways. The design adopts a five-story omni-directional interchange hub interchange, and the two main lines are connected by directional ramps, which fully ensures the overall traffic function of the interchange. However, the interchange distance between Heilongjiang Road and Haier Road is about 1.7 km. The design of interchange nodes is combined with the existing interchange from Haier Road to Wannianquan Road on the north side to realize complementary functions and reduce the interchange height. , the main body is completed.
On June 5438+February, 2009 10, with the successful pouring of the last section of the bridge, the main construction of the first offshore overpass in China, Hongdao Offshore Interchange of Bay Bridge, was completed. According to reports, the superstructure of the Bay Bridge has been completed by 67% and the substructure by 98%. It is estimated that by the end of 20 1, Qingdao Bay Bridge across Jiaozhou Bay will be completed and opened to traffic on 201.
"It is very difficult to build such a bridge at sea, and such difficulty is rare in the world." Shao Xinpeng, chief engineer of Qingdao Bay Bridge, said. On June 5438+February 10, 2009, with the successful pouring of the last section of the bridge, the main construction of the first offshore overpass in China, Hongdao Offshore Interchange of Bay Bridge, was completed. The bridge deck is the section with the highest distance from the water surface, the largest curvature and the most difficult construction, which represents the most advanced level of marine bridge construction in China. According to reports, because of the difficulty of offshore construction, the Bay Bridge Construction Command specially designed the mobile slipform, which is also the first in the world and has obtained many patents.
At the same time, the Hongdao Interchange Bridge of the Bay Bridge also adopted the arc slip-form casting box girder with the largest span and the smallest radius in China. The pouring work lasted 15 hour, and 520.54 cubic meters of concrete was poured. Reportedly, Hongdao Sea Interchange is the first sea interchange in China. The 60-meter slip-form box girder poured across the main line is located on ramp B, and the construction design technology of 350-meter small radius and 60-meter long-span curved surface slip-form is the highest in China.
According to the introduction of the construction headquarters of the Bay Bridge, after the completion of the main body of the Hongdao Maritime Interchange Bridge, the superstructure of the Bay Bridge has been completed by 67% and the substructure by 98%. It is estimated that the Qingdao Bay Bridge across Jiaozhou Bay will be completed by the end of 20 10, and will be officially opened to traffic on 2010. According to reports, the Bay Bridge is divided into two parts: the superstructure and the substructure. The superstructure includes box girder, main tower and suspension cable, and the substructure includes cap, pier and pile foundation. The fifth contract section of the Bay Bridge is the substructure of the bridge.
By the end of June 2009, 565,438+065,438+00 bored piles had been completed in Qingdao Bay Bridge invested and constructed by Shandong Expressway Group. 1 103 bottle cap; Pier1691; Precast box girder 43 1 block; Cast-in-place box girder 3 1 1 hole; Install 376 box girders.
Qingdao Bay Bridge, with a total design length of 35.4 kilometers, is the second sea-crossing bridge in the world. Quanwan Bridge project includes Cangkou, Hongdao and Daguhe waterway bridges, non-navigable bridges and road approach bridges at sea, cross-strait connection project of Huangdao and Hongdao connecting line project, Licunhe interchange, Hongdao interchange, three main toll stations and management facilities in Qingdao, Hongdao and Huangdao. The tender for the connecting line project has been completed, some areas have entered the construction stage, and the bridges of Cangkou, Hongdao and Daguhe waterways have also entered the final tense construction stage.
"We provide protective equipment, such as warm clothes, non-slip shoes and gloves, for workers working at heights. At the same time, in case of severe weather such as strong wind and snowstorm, stop operation immediately, stop large-scale mechanical equipment, and stop construction if necessary. According to reports, after entering the winter, the Bay Bridge Construction Command requires all construction units to listen to and master meteorological information in time, make good preparations for various thermal insulation, and purchase plastic sheets, quilts, thermometers, boiler fuel and cold-proof clothes in advance; Prepare raw materials in advance, wash the stones in advance and put them into the stacking shed to prevent caking and ensure the engineering quality. The goal set by Qingdao Municipal Party Committee and Municipal Government is to "start construction in 2005 and open to traffic in 2008 Olympic Games". The construction of the bridge project will take about 4 years. In fact, the bridge started in May 2007 and was not completed and opened to traffic until June 30th, 20 1 1.
When can citizens drive on the Bay Bridge? The goal set by the municipal party committee and municipal government is to "start construction in 2005 and open to traffic in 2008 Olympic Games". The Municipal Transportation Commission and relevant departments will start construction at the end of 2005, and strive to start construction before the end of June. Up to now, after a race against time, the preliminary work such as bridge engineering survey and design, 24 new special reports, land acquisition and demolition, fund raising and bidding has been carried out one by one. According to experts, the construction of the bridge project will take about four years. If it is to be opened to traffic before the 2008 Olympic Games, the construction progress will be quite tight.
In the "Qingdao" online community, netizens have been discussing Qingdao Bay Bridge. One of the senior netizens commented, "Huangdao Development Zone and Qingdao are separated by Jiaozhou Bay, which can be described as' green and yellow'. Therefore, the construction of the cross-sea bridge has become a lingering complex in Qingdao for many years. It's time to wait for no one. "
The customs declaration place of export goods is in Huangdao over there, and most trading companies are in Qingdao city. When an enterprise declares taxes, it can only be paid by the customs broker. Obviously, this has brought inconvenience to their operation and financing. A private entrepreneur said, "I am looking forward to this bridge. I am already eager to see it."