432 robots move 7,500-ton building in China to make way for construction

The 100-year-old Huayanli complex in Shanghai, a 7,382-ton traditional shikumen-style building set covering 13,222 square feet, is being temporarily relocated about 10 meters per day using 432 small walking robots. This unprecedented engineering project aims to clear space for constructing a three-story underground facility beneath the complex, which will house 173,885 square feet of cultural and commercial zones, a parking garage with over 100 spaces, and a transport hub connecting Metro Lines 2, 12, and 13. The dense, historic Zhangyuan area, featuring narrow alleys and tightly packed buildings, necessitated innovative robotic solutions, including drilling and earth-moving robots capable of operating in confined spaces as narrow as 1.2 meters. Advanced technologies such as AI-driven deep learning, building information modeling (BIM), and point cloud scanning were employed to create detailed 3D models of the site, enabling precise planning of movement routes and soil removal paths. A factory-line-style conveyor belt system was implemented to efficiently remove soil with minimal disruption. Once the underground construction is complete, the Huayanli complex will be returned to its original location, integrating preserved historical architecture with modern underground infrastructure, thereby revitalizing the Zhangyuan area while maintaining its cultural heritage.