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真实地质体三维数值模型构建是进行岩体工程数值分析面临的难题,开展大型复杂地质体三维数值模型构建方法比较研究具有重要意义。以3DMine数字化模型为基础,提出了3DMine-FLAC~(3D)耦合建模方法和3DMine-Surfer-RhinoANSYS-FLAC~(3D)多软件耦合建模方法,详细阐述了各建模方法具体步骤,深入分析了各建模方法优缺点及适用性,通过对比各建模方法的优势与短板,取长补短,改进了3DMine-FLAC~(3D)耦合建模方法存在的缺陷,解决了复杂地质体三维数值模型构建难题。以广西铜坑矿锌多金属矿体开采为背景,利用大型复杂地质体三维数值建模方法,构建了锌多金属矿三维数值模型,分析了矿体上行开采地表沉陷规律。研究成果对准确构建大型复杂地质体三维数值模型具有重要指导作用。
The construction of three-dimensional numerical model of the real geological body is a difficult problem in the numerical analysis of the rock mass engineering. It is of great significance to conduct a comparative study on the construction method of the three-dimensional numerical model of the complex geological body. Based on the 3DMine digital model, a 3DMine-FLAC 3D coupling modeling method and a 3DMine-Surfer-RhinoANSYS-FLAC 3D multi-software coupling modeling method are proposed. The detailed steps of each modeling method are described in detail The advantages and disadvantages of each modeling method and its applicability are analyzed. By comparing the advantages of each modeling method with the short board and learning from each other, the defects of 3DMine-FLAC 3D modeling method are improved and the three-dimensional numerical value of complex geological body Model building problems. Taking the mining of zinc-polymetallic orebodies in Tongkeng, Guangxi as the background, a three-dimensional numerical model of zinc polymetallic deposits was constructed by using three-dimensional numerical modeling of large complex geologic bodies. The law of surface subsidence was analyzed. The research results have an important guiding role in accurately constructing the three-dimensional numerical model of large and complex geological bodies.