Acta Scientiarum Naturalium Universitatis Pekinensis

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An Efficient Method for High-Precision 3D Geological Modeling from Intersected Folded Cross-Sections

QU Honggang, PAN Mao, MING Jing, WU Zixing, SUN Zhidong   

  1. School of Earth and Space Sciences, Peking University, Beijing 100871;
  • Received:2007-10-20 Online:2008-11-20 Published:2008-11-20



  1. 北京大学地球与空间科学学院,北京100871;

Abstract: A new method is proposed for 3D computerized modeling of geological objects from sets of intersected folded cross-sections, and two key problems of “high-precision modeling” and “rapid modeling” are solved. This method expands source data and improves automatization degree for 3D geological modeling. Besides, reconstructed geological objects are more real and smoother, and model quality is improved. Finally, a 3D prototype system is developed based on this method. A case study at the Olympic site in Beijing shows that the method can be applied to practical geological areas.

Key words: 3D GIS, 3D geological modeling, intersected folded cross-sections, high-precision modeling, rapid modeling

摘要: 提出一种基于交叉折剖面的三维地质模型自动构建方法,重点解决模型构建中“高精度”和“快速”的难题。该方法扩大了建模可利用的数据源,提高了建模的自动化程度,构建的模型质量得以提高。基于该方法开发了一个原型系统,并成功应用到北京市奥运场区的工程建设层三维地质建模中,结果表明该方法具有建立实际三维地质模型的能力。

关键词: 三维GIS, 三维地质建模, 交叉折剖面, 高精度建模, 快速建模

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