基于Kriging方法的煤层厚度估计及三维煤层建模

基于确定性的钻孔数据，研究了煤层厚度在空间上的变异特性；基于知识推理型的煤层底板等高线数据，利用条带算法构建煤层底板在空间上的不规则三角网格（TIN）；通过克里金插值技术可以获取TIN中各点的厚度信息，该厚度具有不确定性的特征.对煤层底板TIN在厚度方向上依次映射一个相应的厚度，取得煤层顶板的TIN模型.在顶板TIN和底板TIN之间建立三角单元的拓扑对应关系，最终生成煤层的三维实体地质模型.

The estimation of coal thickness based on Kriging technique and 3D coal seam modeling

Based on the deterministic data of borehole,the variation feature of coal thickness in spatial space was studied.Based on the knowledge-driven data of contour,a Triangulated Irregular Network(TIN) model was constructed using the strip algorithm.By using Kriging method,the thickness of each point of the TIN was calculated.And the thickness of coal has the characteristic of uncertainties.The top TIN of the coal seals can be acquired through mapping the bottom TIN with the calculated thickness.The 3D model of coal seam was constructed by building the corresponding relationship between the top TIN and the bottom one.