Abstract: To address critical challenges in power engineering project management—including complex construction site environments, resource allocation inefficiencies caused by isolated asset operation data, and delayed safety risk response—this study proposes a BIM-based full lifecycle management optimization approach. A data integration platform centered on BIM models was established, utilizing nested family architectures and metadata templates to integrate multi-source heterogeneous data with information completeness metrics (≥80% compliance). By integrating BIM+GIS technologies, a digital engineering terrain sandbox (centimeter-level resolution) was developed to enable visualized earthwork balance simulations and dynamic resource allocation. A dynamic risk coefficient model was constructed using displacement monitoring data from BIM components, forming a real-time safety risk early-warning closed-loop control system. Case validation demonstrated that in a 500kV substation project (8.5 hectares), optimized digital sandbox reduced secondary earthwork transportation volume to 105m3—over 93% lower than traditional methods (1,400–1,600m3). Pit displacement monitoring triggered 8 yellow/red alerts, all resolved within 30 minutes, achieving precise construction resource management and proactive safety risk monitoring.
Keywords: BIM technology; power engineering; project management; digital sandbox; resource allocation; risk early warning