Open-Pit Mine Fine DEM Model Establishment and Updating

Abstract:

In view of open-pit mine complex special terrain, to improved method of constructing triangulated irregular net and combined with the extended boundary, that can remission the phenomenon that steps were flattened and the problem of inefficiency mining area model update. Using constrained triangulated irregular net once generation algorithm, through extraction of spatial data, establish topological relationships and spatial indexing, eventually build a constraints of triangulated irregular net within the boundary constraint line. Combining extended boundary with the triangulated irregular net generated algorithm, can realize the establishment partial model as well as partial and overall model splicing. Thus enhanced the efficiency of the mining area overall model updating.

• Periodical: Advanced Materials Research (Volumes 524-527)
• Pages: 508-514
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.524-527.508
• Online since: May 2012
• Authors: Ai Gong Xu, Yang Cui, Xin Sui
• Keywords: Constrained Triangulated Irregular Net, Extended Boundary, Model Updating, Open-Pit, Spatial Index

References

[1] Yonghe Liu, Yanping Wang, Yongan Qi: A simple and fast algorithm for Delaunay triangles generated by block, edited by Science of Surveying and Mapping(2008), In Chinese.

[2] Daozhu Xu, Haiyan Liu, Ce Yuan: Fast generate Delaunay triangulation under a large number of constraint conditions, edited by Surveying and Mapping Engineering(2007), In Chinese.

[3] Hanjin Xiao, Aigong Xu, Weidong Song: Under the Open-pit coal mine of precision DEM modeling method, edited by Science of Surveying and Mapping(2008), In Chinese.

[4] Zhennan Ren: Once the construction of three dimensional constrained Delaunay triangulation display, edited by Science and Technology(2008), In Chinese.

[5] Lin Yan, Hua Xu: Constrained Delaunay Triangulation algorithm and its application, edited by Beijing University of Chemical(2010), In Chinese.

[6] Danlei Du, Xuegong Chen: With constraint of discrete point triangulated irregular net generation, edited by Zhong Nan University(2008), In Chinese.

[7] Xuxiang Shan, Tao Zheng, Gen Li: An efficient algorithm of constructing Delaunay triangulation, edited by Journal of Southern Yangtze University(2010), In Chinese.

[8] Shaohua Liu, Li Peng, Zhenming He: A construction algorithm of TIN based on dynamic search scope, edited by Surveying and Geospatial Information(2007), In Chinese.

[9] Gang Liu, Yongshu Li, Shuijian Zhang: Based on triangular irregular net grid growth algorithm, edited by Computer Engineering(2011), In Chinese.

[10] Xiaodong Zhao, Xiaobao Yan, Yongming Shen: High quality based on GIS constrained Delaunay triangular mesh, edited by Geography and Geo-Information Science(2010), In Chinese.