Research on Extracting Top and Bottom Lines of Slope in Open-pit Coal Mines Based on DEM
Taking the 0.5-meter resolution DEM of Heidaigou open-pit mine as an example,this article proposes a method for extracting the top line and bottom line of open-pit mine based on high-resolution DEM using ArcGIS software.By calculating the planar curvature of the slope top and bottom in the DEM,the top line and bottom line are separated from the difference between the planar curvature of the slope top,bottom and the planar curvature of the slope surface and the flat disc in the mine DEM.This method is simple to operate and has high accuracy,providing technical support for the production of geographic information in open-pit coal mines in China.
high-resolution DEMopencut coal mineslope top lineslope bottom lineArcGIScurvature
NETL
NSTL
万方数据
