3D Information Acquisition of Disaster Cavity Based on CMS

On the basis of research involving the principle of 3D laser scanning,the different cavity detection methods are put forward according to the different conditions,such as cavity bottom detection,closed cavity detection,and through the cavity upper channel detection.Aiming at the original data format of monitor and its characteristic,the principle of cloud data filtering and data splicing of CMS cavity detection points are studied,the multi-point scanning data splicing method is put forward and the format conversion of cavity detection initial point cloud data is successfully realized,which provides a data base for establishing a cavity 3D solid model.The Delaunay Triangulation Method of cavities 3D modeling is researched.The cavity 3D model method based on mine software of Surpac,which has higher visual degree,editable,and better adaptability,is proposed,and it has been successfully applied to the 3D information acquisition and visualization of complex disaster cavity in Gaofeng Mine of Guangxi Province.The results indicate that cavity 3D information obtained by this method provides the technical support for cavity evaluation and management,quality control,and formulation of the effective resource recycling scheme,etc.