Risk evaluation of water inrush from seam floor limestone aquifer-beds in coal mine
Abstract：Based on analysis of water yield properties of a certain coalmine such as floor confined aquifer, geologic structure, aquifuge and other factors, the paper evaluates water bursting hazard of main limestone aqui- fer-beds under No. 4 coal seam floor through water bursting coefficient method and safety head pressure. Resuits show that other aquifer-beds have no threatens for No. 4 coal seam besides Fu-qing limestone with water below -550 m. The work lays a theoretical foundation for the safety in coal mines.
Keywords：coal seam flooraquifer-bedswater inrush coefficient
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：4( 268-271 )