Abstract:

3D mining software system can realize the accurate design of mining method，the dynamic management of mine resource reserves，and the real-time programming of production planning.  Through the research of 3D geological modeling and 3D roadway design method，the design of a copper mine un-
derground development system in Yunnan province is realized by using 2D and 3D integrated design approach and DIMINE 3 D mining software as the platform. The results show that the method effectively integrates terrain mine orebodies，faults and other geological data，and develop the design in three-dimensional state.  Finally, the reasonable scheme of output can be output, in the form of plan, decision-making, production guidance and other aspects have overcome the shortcomings of the 2D design, it could provide help for mine decision-making and production.

Key words: 3D-geological model, design method, development system