为有效解决地铁工程盾构施工中安全风险管控不完善、监测预警机制不健全、数据传输延迟及可视化应用不足等问题,基于数字孪生技术构建地铁工程盾构施工综合管理平台框架。首先,采用实体建模与基于Dynamo的参数化建模方法构建TBM与隧道模型,提出基于点云的BIM模型更新技术框架,实现隧道BIM模型重建。然后,建立从集团层到项目层的全过程风险分级防控流程,提出周边环境监测预警响应机制及盾构掘进异常工况预警方法; 通过部署云服务,设计盾构作业远程通信与数据同步架构以及虚实同步逻辑框架,保障数据有效传输、存储、处理。最后,以深圳地铁项目为案例,通过平台应用实现了虚拟场景可视化与施工模拟、盾构多参数实时监测、盾构群监控与风险源信息可视化以及掘进参数与工况预警管理。结果表明,平台运行后盾构施工安全水平与风险防控效率显著提升,该平台已在多个城市地铁工程中推广应用。
Shield tunneling in metro engineering is beset with inadequate safety risk control, imperfect monitoring and early-warning mechanisms, data transmission delays, and limited visualization. The authors construct a comprehensive management platform framework based on digital twin technology to effectively resolve these issues. First, TBM and tunnel models are constructed using entity modeling and dynamo-based parametric modeling methods. Based on these models, a point cloud-based building information modeling updating framework is proposed for tunnel reconstruction. Then, a multi-level risk prevention and control process is established from the group to project levels, along with an environmental monitoring early-warning response mechanism and a warning method for abnormal tunneling conditions. Deploying cloud services, the authors also design a remote communication and data synchronization architecture, together with a physical-virtual synchronization logic framework, for effective data transmission, storage, and processing. Finally, a case study on the Shenzhen Metro project is demonstrated. The platform enables virtual scene visualization and construction simulation, real-time multi-parameter monitoring of TBM, TBM cluster and risk-source visualization, as well as tunneling parameter management and condition warnings. The platform greatly enhances tunneling safety and risk control efficiency, and has been successfully applied in multiple metro projects.