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三维地质模型的建立可使勘探数据更逼真的体现,有助于推断、预测和把握其所在研究区域内的分布规律,为地质体的数值分析提供模型。提出了以Surfer和GOCAD软件为过渡平台,通过对地表及各地层三维地质信息的提取、转换,所得数据通过编程手段生成供ANSYS、FLAC3D、GeoStudio等数值分析软件直接读取的模型数据文件,进行二维与三维的数值计算分析。从而实现了数值分析前处理过程中复杂三维地质模型的快速、准确建立。结合崩塌堆积体边坡实例,检验了该方法的可行性和仿真效果。结果表明,建模过程简捷、实用,可操作性强;采用Surfer软件中的插值功能能很好的弥补勘探数据较少的问题;模型可通过GOCAD软件进行三维可视化操作,对模型进行检验、补充和修改。
The establishment of three-dimensional geological model can make the exploration data more vividly reflect, and help to infer, predict and grasp the distribution law in the study area, and provide the model for numerical analysis of geological body. This paper presents Surfer and GOCAD software as the transitional platform. Through the extraction and transformation of 3D geologic information on the surface and strata, the model data files generated by numerical analysis software such as ANSYS, FLAC3D, GeoStudio and so on are generated by programming. Two-dimensional and three-dimensional numerical analysis. In this way, a fast and accurate establishment of the complex three-dimensional geological model during the pre-processing of numerical analysis can be achieved. Combined with the example of slope collapse, the feasibility and simulation results of this method are tested. The results show that the modeling process is simple, practical and practical. The interpolation function in Surfer software can make up for the problem of less exploration data. The model can be visualized by GOCAD software and the model can be tested and supplemented And modify.