English：

To address the technical challenges of tunneling through sensitive shallowfoundation building clusters in complex geological formations, including excessive muck discharge, increased ground disturbance, and high settlement risks caused by uneven rock hardness, a realtime multisource data control system for muck discharge was developed based on the practical experience gained during the section between the Xiamao Station and Baiyun City Center Station of the FangcunBaiyun Airport Intercity Railway in Guangzhou City. This system integrates geological theoretical calculations, dynamic belt conveyor weighing, muck bucket capacity calibration, and dynamic calibration of shield cylinder stroke. By establishing a precise correlation model between cylinder stroke deviation and singlebucket muck volume and by setting dynamic safety control ranges, the system enables realtime early warning of overexcavation risks for each bucket. Furthermore, the identified overexcavation volume is converted into the synchronous grouting compensation volume for the lower ring, and excavation parameters are adjusted in tandem, forming a closedloop intelligent control system of “sensingwarningcompensation.” Results indicate that this technical system successfully ensured the safety of the shield tunnel passing beneath an industrial plant area, with a maximum cumulative building settlement of only -30mm and an average settlement at monitoring points of -031mm, indicating significant settlement control effectiveness. The active settlement control technical system developed through this research has effectively enhanced the safety and level of intelligence in shield tunneling projects passing beneath structures in complex environments.