三维地质应用模型构建方法研究及应用

Research on the method of 3D geological application model

当前国内外对地质体应用模型研究较多,由于专业方向不同、各类数据间的差异,其构建方法众多。本文选择两种方式,一是基于DEM插值曲面构建应用模型,动态演示年际地面沉降和地下水位变化,并对其成因、发展趋势等进行分析评价。二是选择具有空间插值性质的地质数据—视电阻率数值,构建应用模型,可以显示数据的空间展布,进行切割、开挖,以及等值面追踪等功能,进而根据其分布规律反向验证地质体模型中地层划分的正确与否。总之,应用模型与地质体模型的耦合,在地下资源的管理、展示、分析,地质灾害的风险评价,以及辅助管理部门决策等具体工作方面,有较强的应用性和实践意义。

At present, there are many researches about the application model of geological body at home and abroad, because of the difference between different kinds of data and specialties, the construction method of application model is numerous. In this paper, we choose two ways, one is based on DEM interpolation surface construction application model, which dynamically demonstrates the inter-annual land subsidence and groundwater level changes, and its causes, development trends, analysis and evaluation. The other is the choice of geological data with spatial interpolation properties of apparent resistivity values, to build a model which can display the spatial distribution of data, cutting, digging, and contour tracking, and reverse its distribution to verify the stratigraphic geological models classified correct or not. In short, the coupling between the application model and the geological body has strong applicability and practical significance in underground resources management, display, analysis, risk assessment of geological disasters, as well as auxiliary management of decision-making and other concrete work.