Abstract: Aiming at the fact that the application of metallurgical mine information modeling (MIM) technology is lagging behind that of the coal industry,and that there are problems of insufficient model integrity and inefficient synergy,this study proposes a metallurgical mine MIM framework integrating the secondary development technology of building information modeling (BIM). By constructing a " gene" database,a parametric " family" database and LOD classification standards,we establish a multi-source heterogeneous data integration architecture,which supports attribute assignment of geological ore bodies, parametric modeling of roadways and dynamic simulation of the whole life cycle. In the practice of a typical metallurgical mine in Northeast Yunnan,relying on mobile Internet of Things and intelligent equipment (such as rock drilling and supporting integrated machinery and unmanned transportation system),the mechanization of the whole process of mining and transportation is realized,and the openness of information and the security of national strategic resources are taken into account through the management of LOD hierarchical authority. The study shows that the secondary development technology based on Revit / Bentley platform can generate LOD100-LOD500 grade model,which supports collision detection,construction simulation and accurate accounting of project quantity;the " ND" multi-dimensional management model integrates six systems such as safety monitoring,equipment operation,which reduces ventilation energy consumption by 23% and improves production efficiency. The " ND" multi-dimensional management model integrates six systems such as safety monitoring and equipment operation,reducing ventilation energy consumption by 23% and improving production efficiency. This system provides a technical paradigm for breaking professional barriers and optimizing resource allocation,and promotes the transformation of the mining industry to digitalization and intelligence. 

Key words: metallurgical mines,information model,digital intelligence management,LOD standard,parametric modeling