| With the rapid development of economy,the increasing consumption of mineral resources has become the important factors that affect the sustainable development of economy of our country.Unlike traditional mining method,the in-situ leaching is a mining method without roadway that the borehole is the only engineering type for geological prospecting and mining.It requires clearer understanding of geological workers for metallogenic regularity,because the rule of mineralization space distribution can't be testified by roadway,which is also affects the layout of the stope.In recent years,with the rapid development of computer technology,3D geological modeling technology is widely applied in mining field and more intuitively reflects the space shape and occurrence of ore bodies,which provids a basis for decision-making of mineralization prediction and prospecting mining.This paper takes an in-situ leaching deposit as the research object,the general process of 3D geological modeling as well as the data structure and organization method is researched with the help of mining software DIMINE based on the collection of the geological data;3D visualization of of the borehole is made based on geological database of DIMINE and on this base to complete the digital terrain model and the main orebody model,visually and directly showing the topography of the mining area and the spatial distrihution feature of main orebody in true 3D environment;the block model of study area is established to build the blank block model of orebody with 3D solid model of orebody as the constraint;the space interpolation of inverse distance weighted as well as the data analyzing method of the samples is discussed and the establishment method of the searching ellipsoid is proposed according to the occurrence and scale of orebody to establish the orebody grade model;the application of 3D geological model of orebody is discussed to analyze the change rule of three-dimensional space form and reserves of major orebody. |
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