相似材料模型破裂边界提取研究

为了研究相似材料模型破裂区域边界的提取方法,将工业测量技术引入相似材料模型观测,利用面扫描系统获取模型表面的点云数据,针对模型点云数据的特征,首先利用圆形邻域法和扫描线法提取裂缝边界点,然后,利用全局拼接点坐标剔除标志点边界;最后,使用最近距离法将属于同一边界的断点连接起来。对模型观测数据进行提取实验,结果表明:除了少数被标志点覆盖和破裂十分严重的边界以外,该方法能够较好地从相似材料模型点云数据中提取出非连续破坏区域边界,提取结果可应用于开采沉陷研究当中。

Research on Fissure Boundary of Analogue Simulation Model

In order to recognize fissure boundary of analogue simulation model,industrial measurement technology used,and section scanning system was applied to obtain point cloud data of model surface.Firstly,fissure boundary points were recognized by round neighborhood method and scanning line method.Using global splicing point coordinates,mark points boundary was deleted.Finally,breakpoints which belong to same boundary were linked by minimum range method.Test result showed that this method could obtain non-continuous damage boundary from point cloud data,except few boundary which was covered by mark points and was seriously damaged.The recognition result could be used in research of mining subsidence.