摘要
利用有限的煤矿勘探数据,建立煤层底板的高精度等值线图对于煤矿巷道设计、煤层开采具有重要意义。采用两条技术要求来实现高精度等值线的绘制,一是采用Delaunay构网建立原始离散采样点的不规则三角网(Triangulated Irregular Network,TIN);二是对初始TIN模型进行网格加密,形成均匀分布的三角网格。网格加密过程中新插入点的属性值通过克里金(Kriging)插值方法获得,从而建立研究区域的高精度TIN模型。尝试采用一种新的等值线追踪算法,该算法简单直观。采用本文方法,在没有经过光滑处理的情况下,可以达到Sufer软件的绘制效果。
For mine tunnel design and coal seams mining,it is important to build high precise contour of coal floor based on limited exploration data.For building high precise contour,two technical requirements are proposed,one is to build Triangulated Irregular Network（TIN） based on Delaunay,the other is using Delaunay Refinement based on the initial TIN to form uniform mesh.For the insert point,its attribute value is acquired by Kriging interpolation.Then,high precise TIN is achieved.For tracing contour,a new method is adopted.Without any smoothing algorithm,contour drawn by this paper is similar to that by Sufer software.
出处
《工程勘察》
CSCD
北大核心
2011年第2期64-68,共5页
Geotechnical Investigation & Surveying
