The Construction Of Three-dimensional Geological Model Based On The 3Dmine Software In Zoujiashan Uranium Deposit

Zoujiashan uranium deposit is located in the northwest of Xiangshan orefield, and has some characteristics of large reserves and high grade. It has an important position in the uranium deposit area occupies of volcanic rock type. This paper relies on the project of "Xiangshan deep three-dimensional geological survey" of China Geological Survey Bureau, based on the previous research results, analyzes and summarizes the geological characteristics Zoujiashan deposits. Using the basic theory of three-dimensional geological modeling, and other basic information like drilling, exploration line profile, the middle of mining and excavation plan as the basis. On the 3Dmine modeling platform,constructing the model of the surface, ore body, roadway and geological structure of No. 3 Zoujiashan uranium deposits. The establishment of a block model by using distance power inverse ratio, achieving the reserve estimates and other functions. This paper has made the following understanding:(1) database construction: the paper collected drillings, mining contours, prospecting line sections, middle mining engineering plan data, establish the Zoujiashan geological database(positioning table, measuring the inclined table, lithology table and laboratory table), achieved integration of traditional paper-based data of digital storage and the management of digital mine data.(2) geological modeling: Based on 3DMine software modeling, analysis and research the modeling method and mechanism of the different solid model, combined with the basic characteristics of the geological database, proposed the establishment of the basic methods and steps of Zoujiashan ore entity model and surface model. Finally, constructed the mining area surface, structure, orebody and roadway model.(3) Comparation of reserves estimation methods: compared with traditional reserves calculation methods, module valuation of 3DMine software used real 3D geological model instead of the abstract rules of geometry, valuation methods is more flexible and efficient. It can select different parameters matching and its algorithm is faster; in addition, also for dynamic analysis of arbitrary section.(4) Reserve estimation modelings: Based on ore body model, compared with the basic method of the geological statistics, selected the IDW as the basic method, established for the modeling of the valuation method, get the grade of the ore body report, achieved the rapid estimation of reserves of mineral resources.(5) Application of the geological modelings: Put mine data in order one after another, in order to manage and retrieval geological data; use the friendship of Xiangshan uranium deposit and interface(interface, interface of basement and tectonic interface) in the Zoujiashan ore the metallogenic prediction. Based on functions of the software, achieved the mining plan for the preparation; reflected the relationship between topography and water level, through the water level DTM and terrain DTM superposition. In addition, its application includes geotechnical engineering design and other aspects.The establish of three-dimensional geological model can not only provide reliable basis for production planning, mine design and reserve dynamic management,but also provide a stable model platform for mine resource evaluation and calculation of reserves, which greatly improve the production and management efficiency, promote mine deep prospecting, to achieve sustainable development of resources.