On a scorching summer day, as we walked into the Xiamen Xiang'an Airport under construction, there were towering cranes, roaring machines, and cars coming and going, causing workers to work nervously. Behind the hot construction is the surging momentum of technological innovation empowering the construction of major projects. Xiamen Xiang'an Airport will commence construction in January 2022 and is expected to officially open to traffic in 2026. As a rare island type airport in the world, its construction tasks involve engineering fields such as housing construction, civil aviation, municipal engineering, railways, highways, etc. The construction scale is large, there are many types of projects, and the target construction period is short. We have collaborated with relevant units, based on the deep application of BIM+GIS technology, to innovatively build the 'three major think tank platforms' that integrate functions such as planning and design coordination, target duration control, and special process technology consultation. By solving problems at the' point 'and overall coordination at the' surface ', we achieve efficient collaboration, integrated promotion, and precise policy implementation in planning and design, duration control, and problem solving Wu Hongqin, Deputy Commander in Chief of the Xiamen Airport Command, said. It is reported that the planning and design coordination platform utilizes relevant technologies to coordinate conflicts between planning and design, ensuring that the final planning and design is correct and correct; The target construction period control platform has implemented strict time control and early warning correction for various projects, ensuring that they progress in a timely manner; The special process technology consulting platform provides consulting opinions on major difficult technical issues and analyzes and judges major technical disputes, providing solutions for various technical problems. "For example, in the scope of the west access channel, more than ten projects are involved in the cross implementation of land construction projects, Metro Line 3/4, Inter-city rail Line R1, road works, comprehensive pipe gallery works, terminal area supporting works, etc. We have coordinated the complex coordination problems of planning design collision, operation interface intersection, construction organization interweaving among multiple projects through BIM+GIS technology, solved 249 structural collision problems in this area, and ensured the orderly construction of various projects Set Wu Hongqin said. At the construction site of the Xiamen Xiang'an Airport Terminal Area Section 2 Corridor Project undertaken by China Construction Third Engineering Bureau, the high-definition ball camera and gun camera equipped on the Yunzhu Zhilian monitoring platform can achieve full coverage of on-site monitoring. The camera with audio transmission function installed on the tower crane monitoring system platform allows the tower crane driver to vertically track the real-time situation of the hook and lifting object, avoiding the traditional "blind spot" and completing the lifting operation quickly, safely, and efficiently. We empower project management through BIM5D digital construction, carry out quality inspection and safety supervision, and improve the level of refined project management. "Nie Yuanyuan, the executive manager of the second section project of China Construction Third Bureau in the terminal area, said that the project team has independently developed new technologies and processes such as the combined hanging and hammering sinking pipe grouting pile construction system, and the integrated and detachable turnover special-shaped column template reinforcement structure, which have accelerated the overall progress of the project. Su Liyuan, Assistant Project Manager of Xiamen Xiang'an Airport of Beijing Urban Construction Group, told reporters that the intelligent construction platform of the transportation center in the third section of the terminal area constructed by the group integrates facial recognition access control, video monitoring equipment, video AI recognition terminals, vehicle entry and exit equipment, environmental monitoring equipment, sprinkler controllers, intelligent positioning safety helmets, vehicle positioning equipment, tower crane collision prevention equipment