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《Science of Surveying and Mapping》 2008-02
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3D modeling and visualization of geological bodies based on borehole data

LUO Zhi-yong, YANG Wu-nian(Information Engineering College, Chengdu University of Technology, Chengdu 610059, China)  
3D geologic models can completely and unambiguously define the geologic structures for the site being modeled, including complex boundaries and embedded seams. This can hel Pgeologists and engineers to understand their research objects better and greatly enhance the accuracy of geologic analysis. So the technique of reconstructing 3D geologic model attracts more and more attention from many industries such as mining, geotechnical engineering and so on. On the basis of the former researches, combined with practice, a simple and practical approach for generating 3D geologic models from borehole and cross-section data is presented. The approach allows people to intervene modeling process and modify result model by introducing user-defined cross-sections. Through sampling of stratum boundary on user-defined cross-sections, a mass of spacial interpolating points are obtained, which brings better interpolation effect for every stratum in the new round of modeling process. The approach not only possesses faster process speed than former approaches but also can commendably solve many problems caused by only using borehole data, such as imprecise and unmodifiable modeling results. Finally, the actual effect of the approach is shown in a case study.
【Fund】: 2005年度绵阳创新基金项目(05MLDZ035)
【CateGory Index】: P628.3
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