Recently, the bidding results of the T2 terminal project of the reconstruction and expansion project of Kunming Changshui International Airport have been officially announced, marking that the Kunming Airport expansion project has entered the stage of full implementation.
The new T2 terminal of the Kunming Changshui International Airport reconstruction and expansion project has a construction area of 730,000 square meters, with a width of about 882 meters from east to west and a depth of about 978 meters from north to south. The northeast and northwest corridors are zigzag, 310 meters long and 34 meters wide; The southeast and southwest corridors are Y-shaped, with a length of 580 meters on one side and a width of 65 meters (at the end), containing functions such as departure, arrival and transit for domestic and international passengers.
The S2 Satellite Hall Reserved Project is located on the north side of the existing apron of the S1 Satellite Hall and the south side of the T2 Terminal, with a construction area of about 10,500 square meters in the construction of underground civil structure engineering and installation of reserved embedded projects.
The airside MRT and baggage access project is located between the S2 satellite hall and the T2 terminal, with a construction length of about 838.92m and a cross-sectional design of a three-cabin or two-cabin rectangular structure. The ancillary works of the section include A, B, C and S2 satellite hall MRT stations, with a construction area of about 3,649 square meters.
The project is divided into two sections, the first is the T2 terminal project (north section) and the second bid section is: T2 terminal project (south section).
On August 18, 2023, the Civil Aviation Administration of China and the People's Government of Yunnan Province jointly approved the preliminary design and budget estimate of the terminal area and the supporting project of the north working area of the reconstruction and expansion project of Kunming Changshui International Airport. Previously, on April 23, 2023, the preliminary design and budget estimate of the flight area project of the Kunming Changshui International Airport reconstruction and expansion project were approved by the Civil Aviation Administration of China.
The current phase of the reconstruction and expansion project of Kunming Airport will build a new 4,000-meter-long and 45-meter-wide East Second Runway and the corresponding taxiway system on the east side of the existing East First Runway; A new 4,000-meter-long, 45-meter-wide West Third Runway and the corresponding taxiway system will be built on the west side of the existing West 1st Runway; A new 730,000-square-meter T2 terminal with 189 stands, an 80,000-square-meter integrated transportation center (GTC), a 309,000-square-meter parking building, a freight station, various production auxiliary and living service facilities, as well as air traffic control, fuel supply, public facilities, etc.
The total estimated budget of the airport project is 66.5 billion yuan, and the project is expected to be completed in 2030. At that time, Kunming Airport will achieve the annual passenger throughput of 95 million passengers, cargo and mail throughput of 395,000 tons, and the design target of 633,000 take-off and landing flights.
Let's first appreciate the T2 design scheme of Kunming Airport.
1. Project overview
The reconstruction and expansion project of Changshui International Airport is a system project composed of T2 terminal, S2 satellite hall, transportation transfer center, three-dimensional parking building, and landside transportation system.
2. Design features
01. The core concept of "strong master and weak guard".
Through the operation mode of "one main building and one satellite" and the six-finger corridor configuration of "Dagangwan double bifurcation", the capacity of the seats near the main building within walking distance of passengers will be expanded. The aircraft was launched with high efficiency, ensuring the efficient operation of the airside.
The function improvement strategy of the transportation center of "arrival and departure diversion, separable and combinable" diverts the flow lines of departure and arrival passengers, and raises the original garage placed below the rail line to both sides of the rail line, so that the boundary between the garage and the traffic center is clear, and it can be separated and combined.
02. A transportation hub that "fits the terrain".
Make full use of the height difference of nearly 50m in the terrain, the main building of the terminal is arranged on the outside of the high ridge, and make full use of the space under the ridge, the building complex is from north to south, level up, combined with the topography to organize 4 three-dimensional levels of landside collection and transportation road system, integrating 3 subway lines and a high-speed rail line, and also reserving the long-term intercity railway, in which all kinds of transportation vehicles are seamlessly transferred and run efficiently.
The road system improvement strategy of "simplifying, reliable and stable" uses the platform to build a comprehensive transportation hub service road, further optimizes the slope of the outdoor road, and makes the operation of the road system more efficient and reliable.
03. Functional considerations of "making the transfer bigger".
The international area is arranged close to the main building, and a large number of convertible seats with switchable international and domestic functions are set up in the middle finger corridor to meet the requirements of airline hub operation.
The airside layout has been further optimized to provide up to 12 convertible slots and 8 combination slots. A centralized transfer center is set up in the center of gravity of the main building, the remote stand and the MRT terminal building, which greatly shortens the transit time of passengers.
Adopting the functional layout of "shortening the walking distance of passengers as the core, combining the two-station MRT and the fast passenger trail system", the MRT in the building adopts a two-station tram system, which greatly simplifies the operation of the MRT system, is conducive to passenger identification and staging, and combines the fast passenger trail system on the substratum to effectively optimize the passenger walking experience.
04. "Green and energy-saving" ecological airport
Combined with the climatic conditions of Kunming in all seasons, we will build an energy-saving and efficient ecological airport. Based on computer simulations, the use of air conditioning in the transitional season is minimized through the ingenious combination of architectural modeling and natural ventilation. Diffuse reflection of soft sunlight provides abundant natural light to more than 60% of the building's space and serves as a guide for travelers. The landside garage adopts an open design to create a zero-energy ecological garage.
Viewed from the air, the terminal building is like a spring vine, winding and agile, and the two green axes extend to the north, blending into the lake and mountains. The green roofs and green pedestals of the multi-storey garage form an excellent place for visitors to rest and enjoy the scenery. The road in front of the building is hidden in the terraced green slopes on both sides, enclosing it into a "green valley of spring".
The implementation of the reconstruction and expansion project of Kunming Changshui International Airport will provide strong support for Kunming Airport to become an international aviation hub radiating South Asia and Southeast Asia, and a modern comprehensive transportation hub for the opening up of southwest China, and is of great significance for Yunnan Province to build an international aviation hub, accelerate its integration into the new round of opening up and development pattern of the country, and build a large channel and bridgehead open to the Indian Ocean.