On July 31, 2024, the main construction of the third phase expansion project of Lanzhou Zhongchuan International Airport was successfully completed, marking a glorious victory for this grand project that took more than 1400 days and involved countless builders' efforts. This is not only a significant improvement in the construction of transportation infrastructure in Gansu and even the northwest region, but also a profound transformation for the future travel experience of passengers.

Since the project officially started construction in September 2020, after more than four years of unremitting efforts, it has finally reached this historic moment. According to the design goals, the airport will achieve an annual passenger throughput of 38 million, a cargo and mail throughput of 300000 tons, and 300000 aircraft takeoffs and landings by 2030. The flight zone level index will reach 4E, making it an important aviation hub in the northwest region.

The core highlight of this expansion project lies in its massive construction scale and advanced design concept. The newly built two runways, a 400000 square meter T3 terminal, and a 270000 square meter comprehensive transportation center not only greatly enhance the airport's carrying capacity, but also provide passengers with a more spacious and comfortable waiting environment. The T3 terminal has a unique design, adopting a configuration of "main building+four piers", with each pier ranging in length from 336 meters to 422 meters, and a total of 94 parking positions, including 74 near stands, greatly facilitating passengers' boarding and transfer. The terminal building has a soft exterior curve, symbolizing the "nine curved Yellow River", which not only showcases the regional characteristics of Gansu, but also endows the building with vitality and dynamism.

In the design of the comprehensive transportation center, the advanced concept of "seamless connection between air, rail, and rail" is also reflected. At a depth of 20 meters underground, the airport is connected to the Lanzhang Third and Fourth Line Railway and reserved rail transit. At a depth of 11 meters underground, there is a high-speed railway and reserved rail station hall. Above ground, there is a parking building with 3520 parking spaces. This design enables passengers to easily transfer between various modes of transportation such as airplanes, high-speed trains, and subways at Lanzhou Zhongchuan International Airport, greatly improving travel efficiency.

In addition, the expansion project has widely applied new technologies and equipment, with a domestication rate of up to 98%. Among them, domestically produced intelligent luggage systems, 86 fully automated boarding bridges, and the "integrated detection and drive" bird defense system have all been applied on a large scale for the first time in domestic airports. The application of these technologies not only improves the operational efficiency and service quality of airports, but also brings passengers a more convenient and efficient travel experience.

It is worth mentioning that in order to cope with the large temperature difference between day and night in the Lanzhou area, the participating units have independently developed the largest intelligent group control system for cold and heat sources in Gansu Province. The system can adjust and control the heating and cooling equipment in real time according to the outdoor temperature, ensuring that the temperature inside the terminal remains between 23 and 26 degrees Celsius in summer and 20 and 23 degrees Celsius in winter, providing passengers with a comfortable waiting environment. Keywords: engineering construction, engineering news, engineering construction information.

With the completion of the main project, the third phase expansion project of Lanzhou Zhongchuan International Airport is about to enter the stages of special acceptance, completion acceptance, industry acceptance, and joint trial operation. Industry insiders say that after the transfer and operation, Lanzhou Airport will become one of the important comprehensive transportation hubs in the northwest region and even nationwide, providing passengers with more convenient, high-quality, and efficient travel services. At the same time, the expansion of the airport will further promote the economic and social development of Gansu and surrounding areas, injecting new vitality into the prosperity of the regional economy. (This article is from the official website of Jian Dao: www.seetao.com. Reproduction without permission is prohibited, otherwise it will be prosecuted. Please indicate Jian Dao website+original link when reprinting.) Jian Dao website mechanical column editor/Zhou Yingwen