基于线框模型的特征断面巷道段三维建模算法

发布时间：2018-07-18 08:20

【摘要】：为解决巷道断面在矿山工程中不断改变,造成巷道三维建模过程繁琐的问题,提出基于线框模型的特征断面巷道段三维建模算法。首先阐述数据采集与预处理过程,提出对不规则巷道断面的数据采集及处理方法,并对巷道段中包含的元素进行拓扑结构分析,同时根据矿山中存在巷道断面的多样性,建立巷道特征断面模型库,实现规则巷道断面和不规则巷道断面的坐标细化分析,设计对应巷道特征断面的离散化算法,将特征断面离散化为断面点,并基于特征断面中心点三维坐标将断面点转换为空间坐标加载到对应巷道中心线的控制点处,同时提出巷道转弯处断面变化巷道段的平滑处理算法,将转弯处巷道中心线圆弧处理,巷道段的三维建模基于线框模型建模思想,采用三角剖分形成三角网完成巷道段的建模,以提高不同巷道段的三维建模效率。
[Abstract]:In order to solve the problem of 3D modeling of roadway caused by the changing of roadway section in mine engineering, a 3D modeling algorithm for roadway segment of characteristic section based on wire-frame model is proposed. Firstly, the process of data acquisition and pretreatment is described, and the method of data acquisition and processing for irregular roadway section is put forward, and the topological structure of the elements contained in the roadway section is analyzed. At the same time, according to the diversity of roadway section in the mine, The model base of roadway characteristic section is established, the coordinate refinement analysis of regular roadway section and irregular roadway section is realized, the discretization algorithm of corresponding roadway characteristic section is designed, and the characteristic section is discretized into section point. Based on the 3D coordinate of the center point of the characteristic section, the section point is transformed into the space coordinate and loaded into the control point of the corresponding center line of the roadway. At the same time, the smoothing algorithm of the section of the roadway at the corner of the roadway is proposed. In order to improve the efficiency of 3D modeling of different roadway segments, the three-dimensional modeling of roadway centerline is processed and the three-dimensional modeling of roadway segment is based on the idea of wire-frame model modeling and triangulation is used to form triangulation network to complete the modeling of roadway segment.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD67;TP274.2

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