谭正华,张进修,王李管,戴立平.基于实测腰线数据的地下连通巷道精细建模方法[J].有色金属工程,2019,9(8):.
基于实测腰线数据的地下连通巷道精细建模方法
An Underground Entity Modeling Method for Connected Laneway Based on Measured Waist Line
投稿时间:2018-05-11  修订日期:2018-06-20
DOI:
中文关键词:  巷道建模  腰线  空间网格  分区建模  工程验收
英文关键词:laneway modeling  waist line  space grid  partition modeling  acceptance of work
基金项目:湖南省自然科学基金项目
           
作者单位
谭正华 湘潭大学
张进修 湘潭大学
王李管 中南大学
戴立平 湘潭大学
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中文摘要:
      为充分利用实测腰线数据达到重构的巷道表面光滑、精细的目标,采用分区建模的方法,提出了一种基于实测腰线数据的地下巷道精细化重构算法:将实测的腰线根据底板中心线调整高程,得到巷道的底板边界线;基于顶板中心线,建立结点-路径网络拓扑关系图,同时提取该网络图中的连通路径,在路径和底板边界线间,分区构造局部断面轮廓线;提取相邻轮廓线间的空间网格,并对该空间网格进行曲面三角化;将巷道底板边界线分解为多个单调多边形后进行三角化;合并所有局部网格模型,生成内部连通的实体。应用实例表明:该算法可实现断面形状多样、拓扑关系复杂的地下连通巷道的三维模型重构实体,能较好地满足工程验收和采矿设计的需要。
英文摘要:
      In order to re-construe the laneway with smooth and fine surface by making use of measured waist line data ,a 3D automatic reconstruction algorithm of connected underground tunnel was proposed by adopting the partition modeling strategy on the basis of measured waist line . Based on the center line of the floor, this paper constructed the laneway floor boundary line from the measured waist line;the connected path was extracted by means of node-path network which was established by using the center line of roof ;the local section profile was fitted, the space grids between adjacent contours were extracted, and the surface triangulation of the spatial meshes was performed, which based on path line and floor boundary line; the laneway floor boundary was decomposed into a number of monotonous polygons ,before?it?was?triangulated; All discrete model was merged together and then 3D entity of connected roadway took shape. The application demonstrates that the algorithm can successfully restructure 3D laneway entity of the underground roadway despite the cross section of diversified shape and the complex topological relation.Thus the requirements of engineering acceptance and mining design are better satisfied.
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