Extenics Evaluation of Coal Seam Floor Water Inrush Hazard and Its Application
ZHANG Qiang
DONG Qinghong
CHEN Kai
LIU Fei
SU Mei
Abstract：In order to overall evaluating the water inrush risk in coal seam floor, 13 factors including the fault density, the water conductivity of fault, the fracture development degree, the pressure of confined water, the water yield property of aquifer, Karst development degree, the make-up of strong water source, the thickness, strength and integrity of water-resisting layer, the mining thickness and depth and the inclined length of working face were chosen as the key evaluation factors which affect floor water inrush. By taking the matter-element theory, the extenics set theory and the operation of relevance function as the base, a matter-element model for floor water inrush risk evaluation in coal mines was established. Evaluation was made with this model on the floor water inrush risk in 3612 working face in a mine in Huaibei Coal Mining Area, and its correctness was verified. Some typical cases of mine floor water inrush occurred in recent years were selected for further analysis, and the analysis results were consistent with the actual ones. The classification of mine floor water inrush risk based on the extenics evaluation has higher reliability and applicability, and the research results provided a new thought and method for the evaluation of coal mine floor water inrush risk.
Keywords：extenicsmatter-element modelfloor water inrushrisk classification
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 44-49 )