How is the new airport in Beijing being built now?

The construction of Beijing new airport has achieved initial results, and it will be put into trial operation in June next year at 5438+ 10.

Beijing New Airport, as a major project supporting the construction of Beijing International Exchange Center, will be put into trial operation on June 20 19. Recently, the new airport construction has achieved phased results: the main terminal building has been capped and enclosed, the new airport bases of China Southern Airlines and China Eastern Airlines have started construction one after another, and the widening project of Jingkai Expressway in the five vertical and two horizontal transportation networks has been completed.

Airport runway "three vertical and one horizontal"

Beijing new airport is positioned as a large-scale international hub airport, which will form one city and two bureaus with Beijing Capital Airport. At this stage, according to the "three vertical and one horizontal" runway construction, by 2025, the passenger throughput will be 72 million passengers and the freight throughput will be 2 million tons/year. In the long term, six runways will be built to meet the annual passenger throughput 1 100 million passengers and freight throughput of 4 million tons.

Yuan Hongwei, director of the Investment Planning Division of the Beijing Office for Coordinating and Promoting the Construction of the New Airport, said that the passenger flow has been saturated for many years after the expansion of the Capital Airport. After the completion of Beijing New Airport, it will not only effectively relieve the pressure on the Capital Airport, but also support the construction of Beijing International Exchange Center, the coordinated development of Beijing-Tianjin-Hebei, the optimization and upgrading of the spatial layout of the capital city, and promote the balanced development between the North and the South.

The new airport terminal has been capped and closed.

He introduced that at present, the new airport terminal has been capped and closed, and the glass curtain wall has been basically completed. Next, according to the plan determined by the state, we will carry out various preparations before the installation and debugging of indoor equipment, and basically complete the main project by the end of 20 18. Projects such as flight area, on-site traffic and municipal administration have also been basically completed, and facilities such as aviation base, air traffic control, oil supply and port have been accelerated; The surrounding "five vertical and two horizontal" traffic skeleton and supporting municipal facilities will be accelerated to ensure the smooth navigation of the new airport in 20 19.

In order to support the construction of the new airport life support base, Beijing has made it clear that it will refer to the relevant policies of Beijing's talent public rental housing and authorize Capital Airport Group to organize and implement it as the main body of the project. The site selection scheme of phase I land 15 hectare has been determined, and the preliminary work of the project is being carried out. Follow-up will combine the overall planning of the surrounding area of the new airport, coordinate the short-term and long-term needs, make full use of social resources through Beijing-Hebei linkage and resource sharing, and gradually solve the housing problem of staff in resident units.

Visit 1 new airport terminal

Eight groups of C-shaped columns support the roof of "Phoenix Spreading its Wings"

In the winter sunshine, the terminal building of Beijing New Airport stands proudly, just like a phoenix spreading its wings.

"Achieving efficient transit is the core feature of the terminal. We designed the mode of double entry and double exit, which improved the efficiency of passengers' travel. The distance from the exit to the terminal is more than 600 meters, and you can board the plane within 8 minutes' walk at most. In addition, there is a high-speed rail underground, which basically realizes zero-distance transfer. "Li Jianhua, deputy commander of the new airport construction headquarters of Beijing Urban Construction Group and manager of the general contracting department of the terminal project, said.

Two train tracks were built to transport materials.

Entering the main terminal of the new airport, Li Jianhua introduced that the main terminal has just been capped and closed, and the whole construction process can be described as "high-tech".

"At most, there were 35,000 construction workers," Li Jianhua said, including airport projects, aviation bases, oil supply projects, air traffic control, port facilities, tracks and expressways. There are many construction units and hundreds of construction enterprises.

The new airport terminal complex is the largest single terminal building in the world at present, with a total construction area of over 6,543.8+0.42 million square meters, including passenger terminal building (core area and five corridors), comprehensive transportation center (parking building and comprehensive service building) project and underground track. Among them, Beijing Urban Construction is responsible for 600,000 square meters, which is the core and most complicated part. One floor can hold a bird's nest, which is equivalent to 25 football fields.

The concrete pouring volume of the main terminal building reaches 6.5438+0.05 million cubic meters, and the average monthly pouring volume is equivalent to the construction of 25 high-rise buildings with 654.38+08 floors. Li Jianhua said, "During the peak construction period, 8,000 people worked here at the same time. Usually used materials, manpower and even tower cranes can't be transported. At that time, two train lanes were built here and materials were transported here by train. "

1 152 isolation bearing for eliminating high-speed rail vibration.

The introduction of high-speed rail into the terminal building has also brought a problem. How to reduce vibration? Li Jianhua introduced that all the top columns of the first floor of the high-speed railway are equipped with rubber isolation bearings, totaling 1 152, which is the largest consumption of single buildings in the world. The largest isolation bearings are more than two meters in diameter and the largest in the world. He said that the isolation bearing forms an isolation layer, which can absorb all the vibration. I used it at Kunming airport before, and the consumption was not that big.

On June 30th last year, the whole steel structure net was completed, with a total weight of over 42,000 tons, equivalent to the weight of the bird's nest shell. The whole surface modeling was completed in less than 3 months. The surface of this grid is a phoenix-shaped roof steel grid. More than 60,000 steel frames and 12000 connecting balls are all welded.

Phoenix roof steel grid must be positioned accurately, the assembly process is complex and the installation is extremely difficult. Li Jianhua said that the wind resistance of the roof of the terminal building has been greatly improved compared with previous buildings. Compared with the previously used Al-Mn-Mg plate, the new material is more rigid and less deformed. After many wind tunnel tests, the connection system was developed, which made the whole structure safer and more resistant to the once-in-a-century typhoon.

Li Jianhua introduced that the construction team went to work at 7: 00 in the morning and got off work at 10 in the evening for three consecutive months, and finally finished the task two days ahead of schedule.

More than 8,000 pieces of roof glass are different.

The roof area of the new terminal building is 6.5438+0.8 million square meters, which is also the largest in the world. The main natural lighting system at the top of the terminal building consists of a central skylight, six strip skylights, eight bubble windows and a lighting belt running through the middle of the corridor.

According to reports, the entire terminal uses glass12,800 pieces, including more than 8,000 pieces of roof glass. Li Jianhua said that no two of the 8,000 pieces of glass are the same, because the roof is made of streamlined surfaces. Each glass has four layers, the upper and lower layers are glass layers, the middle layer is hollow, and the inside is filled with metal shutters, which can block the noon light and meet the natural lighting requirements of the terminal building.

In order to reserve enough activity space, the roof of the whole terminal is supported by eight groups of C-shaped columns. Li Jianhua pointed to the post at the scene and told reporters that there are two groups in the south, two groups in the middle and four groups in the north. In the middle position, with a span of180m, a water cube can be put down.

Li Jianhua introduced that this year's terminal building will be more arduous and arduous, "to achieve the effect of getting on the bridge and getting into the building". Among them, the facade of the terminal building should be completely uncovered to achieve the design effect. The effect of large-scale fine decoration inside came out.

Access 2 traffic

Jingkai Expressway Widening Project

The main and auxiliary roads are all widened, and the blocking effect is obvious.

65438+ At the end of February last year, the widening project from Wei Yong Road to Xihuangfa Bridge of Jingkai Expressway was completed.

The day before yesterday afternoon, on Lihua Bridge of Jingkai Expressway, the general manager of Jingkai Expressway Widening Project Management Office of Shoufa Group pointed to the road surface and told reporters that there was a seam about one meter away from the center of the main road, that is, where the old and new roads overlapped.

He said: "Traffic jams were serious in the morning and evening before the widening, and traffic jams began in Daxing." From June of 20 16 to the end of February of 20 17 and 165438, the first group expanded and reconstructed this section1.4 km long. Among them, the main road is widened from four lanes to six lanes. After widening, the traffic jam is greatly alleviated, and there is basically no traffic jam on the main road. At the same time, the project will also provide guarantee for the transportation of materials and equipment for the construction of the new airport.

Men Hailong introduced that after the construction, a 5-meter-square rainwater culvert was laid under the auxiliary roads on both sides of the road section, and the rainwater flowing through the main and auxiliary roads will flow downstream through the culvert.

Although it was widened on the original road, after careful organization, the widening project was implemented for one and a half years without interruption of traffic and no safety accidents during the construction.

New airport expressway

The starting point will be connected to the Gongyi East Bridge on the South Fourth Ring Road.

Outside the northern boundary of the new airport, pairs of elevated piers extend northward, and construction machinery is under construction. This is the section of the new airport under construction heading for Beijing.

The relevant person in charge of Beijing Investment Transportation Development Co., Ltd. introduced at the scene that the starting point of the new airport expressway is Tuanhe Bridge east of the South Fifth Ring Road. In the future, the public welfare East Bridge connecting the South Fourth Ring Road will be considered, with a total length of 35 kilometers. Among them, the fourth ring road to the fifth ring road is 8 kilometers, and the fifth ring road to the new airport is 27 kilometers. At present, the fourth ring road to the fifth ring road is doing preliminary work, and the 27-kilometer section is under construction. Construction started at the end of February 20 16, and the main project is planned to be basically completed by the end of this year.

According to the person in charge, there is a 7.9-kilometer-long three-line structure on this road, that is, three roads go together. This layout form of three-line co-construction, four-line co-location and five-line corridor is the first in Beijing.

The whole structure is 30 meters high and divided into three layers. The upper level is the new airport expressway, the middle level is the new airport rail line, and the lower level is Tuanhe Road, a first-class highway.

The construction of three lines at the same time, in the same place and in the same direction is complicated in site organization and difficult in construction management. Why are you doing this? Mainly to save land. If the three lines are built separately, there will be an included angle between different lines, and a 30-meter protective belt will be set around the railway.

New airport line of rail transit

Caoqiao to the new airport is the fastest 19 minutes.

According to the plan, the subway airport line will be put into trial operation in September 2065438+2009, and 30% of passengers going to the new airport will take the new airport line subway in the future.

Jin Yi, chief engineer and deputy general manager of Beijing Urban Railway Construction Rail Transit Investment and Development Co., Ltd., introduced that the new airport line is the first urban rail transit line with the highest speed of 160km/h in China, with a running speed of 1 10km/h, and the theoretical running time from Caoqiao to the new airport is only 19 minutes.

At present, at the underground 12km of Caoqiao-Cigezhuang section, the construction party is adopting a large-diameter shield machine with an outer diameter of 8.8m, which is the largest shield machine in China at present.

The vehicle adopts the grouping form of 7 passenger cars plus 1 baggage car, with all seats in the passenger cars and 448 people on the whole train. The car is equipped with large luggage racks and other facilities to facilitate passengers to carry their luggage.

Visit 3 China Eastern Airlines Beijing New Airport Base

Construction of the core work area of China Eastern Airlines Base started.

As the main base airlines, China Eastern Airlines and China Southern Airlines have settled in Beijing New Airport, and each has built a base according to 40% of the air passenger traffic of the new airport. Capital Airlines, Hebei Airlines, China Post Group Corporation, etc. Following the principle of "unified requisition, unified planning, unified construction and unified management", the production supporting facilities are built by Capital Airport Group Corporation as a whole to jointly undertake the rest of the passenger transport business. Last June, 5438+065438+ 10 and February, 65438+February, the projects of China Southern Airlines Base and China Eastern Airlines Base started construction one after another.

At China Eastern Airlines Beijing New Airport Base, the infrastructure construction of maintenance area, living service area and core work area has started.

Ge Bulei, deputy general manager of the Planning and Coordination Department of China Eastern Airlines New Airport Headquarters, introduced that the construction scale of China Eastern Airlines Beijing New Airport Base is 1 169800 square meters, including five parts: freight area, aircraft maintenance and special vehicle maintenance area, aviation food and ground service area, core work area and living service area.

At present, in addition to the above three projects, the aviation food and ground service areas are making preparations before construction, and the freight area is scheduled to start construction before February this year. At present, planning, construction application and tender preparation are under way.

Gebray said that Beijing new airport base will become the most important hub outside China Eastern Airlines general base. According to the goal of taking 40% of the air passenger traffic of Beijing New Airport, in 2025, between 0.50 and 200 passenger planes will be put into operation, which can meet the passenger traffic of 28.8 million passengers and the cargo and mail throughput of 7/kloc-0.50 million tons. By then, nearly 20,000 people of China Eastern Airlines will participate in the operation guarantee work here.

Visit four new airport resettlement houses

The resettlement house meets the two-star standard of green building.

In Yufa Town, a large number of airport resettlement houses have been built. Into a three-bedroom, two-bedroom and two-bath apartment, the house is square, spacious and bright, and the area is rarely wasted.

According to the relevant person in charge of Daxing District, the resettlement houses of the new airport include two groups: Yufa and Lixian, with a total construction land area of about 7 1.5 hectares and a total construction area of about 1.95 million square meters, including 136 residential buildings, basements and some supporting facilities, with a floor of12-/. Up to now, the main building has been completely capped, and 80% of the interior decoration and facade construction have been completed.

According to reports, the resettlement housing of the new airport integrates the concepts of green city, sponge city and smart city, realizes the integrated design of transportation facilities and public space, and reflects the characteristics of aviation city from urban streets, furniture and landscape lighting systems. There are complete facilities such as schools, hospitals, nurseries, vegetable markets and convenience stores in the resettlement houses.

This is also the first batch of resettlement houses in Beijing that meet the two-star standard of green building. According to the relevant person in charge, for example, using solar energy to provide domestic hot water for residents in the form of "centralized heat collection, centralized heat storage and decentralized auxiliary heat" reduces the cost of living. The concept of rainwater utilization is also introduced in the landscape design of residential quarters to realize the comprehensive utilization of water resources.