The influence of terrain curvature on coal and gas outburst
Abstract：Taking Pingdingshan mining area as engineering background, the paper analyzed the terrain curvature of Pingdingshan mine area and the distribution characteristics of curvature radius according to DEM model, and then dis- cussed the influence of terrain curvature on the coal and gas outburst. The relation model between the numbers of coal and gas outburst disaster and curvature radius was established. The results show that coal and gas outburst occur main- ly in areas with the curvature of bigger change and positive radius. There are little coal and gas outburst in the negative curvature radius areas.
Keywords：coal and gas outburstterrain curvaturecurvature radiusgeological environmentPingdingshan mining ar-ea
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 1541-1546 )