Abstract:

For the purpose of intellectualization and automation in the process of 3D modeling and also for simplification of complex geological body modeling, DXF interface program which can read the borehole data and some other drawing data from CAD and rewrite it to database or visualize it is programmed. The 3D fast modeling method is put up with, which dose the interpolation with stratus attribute values by means of GA-Kriging. Moreover, the functions including modeling, contours drawing, display of boreholes, slicing of strata, extraction of special stratum, calculation of volume and so on. In the programming of Kriging interpolation method code, the GA intelligent algorithm is applied for the calculation of constant parameters such as nugget constant and range. It is proved that in this way global optimal solution of the parameters can be obtained easily. Finally, an engineering instance is given to test whether this kind of modeling method and related program codes are appropriate or not; it is shown that in this way the 3D modeling becomes easy and efficient.

Key words: 3D visualization, borehole data, Kriging interpolation method, genetic algorithm, fast modeling