人民长江 ›› 2021, Vol. 52 ›› Issue (8): 127-132.doi: 10.16232/j.cnki.1001-4179.2021.08.019

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复杂地质条件下高精度三维地质建模研究

刘顺昌,李黎,徐德馨,曹厚臻   

  • 发布日期:2021-09-27

High-precision 3D geological modeling under complex geological conditions

LIU Shunchang, LI Li, Xu Dexin, CAO Houzhen   

  • Published:2021-09-27

摘要: 三维地质模型不仅可以直观地展示地质状况,还能够辅助和支持地质行业的技术决策,对地质工作研究提供三维数据支撑。针对复杂地质条件,提出了一种地层建模和岩性建模的混合三维地质建模解决方案。以武汉市长江新城起步区为例,基于EVS建模软件,以地质剖面和钻孔数据为基础,开展复杂地质条件下三维地质高精度网格化模型的建设研究,并采用剖面对比和岩性概率模型对三维模型进行验证和质量评估。在此基础上,开展三维模型可视化表达及应用研究。结果表明:用地层建模和岩性建模的混合建模方式可以适应复杂地质条件下的三维建模,模型结果科学、可靠,有重要的实际应用价值。

关键词: 地层建模; 岩性建模; EVS软件; 模型验证; 复杂地质条件; 武汉市长江新城;

Abstract: The 3D geological model can not only display the geological conditions intuitively, but also assist and support the technical decision-making of geological industry, and provide 3D data support for the study of geological work.A hybrid 3D geological modeling solution for stratum modeling and lithology modeling is proposed for complex geological conditions.Taking the starting area of Yangtze River New Town in Wuhan as an example, based on EVS modeling software and geological section and borehole data, the construction of three-dimensional geological high-precision grid model under complex geological conditions is studied, and the three-dimensional model is verified and evaluated by profile section comparison and lithologic probability model.On this basis, the visualization expression and application of 3D model are studied.The results show that the hybrid modeling method of stratum modeling and lithology modeling can adapt to the 3D modeling under any complex geological conditions.The model results are scientific and reliable, and have important practical application values.

Key words: stratum modelling; lithology modelling; EVS software; model verification; complex geological conditions; Wuhan Yangtze River New Town;