Floor water inrush threat assessment based on comprehensive weight and VIKOR(CW-VIKOR)
The mining of Zhungeer Coalfield is facing the threat of water inrush,and traditional evaluation methods can no longer meet the needs of actual production.To enrich the floor water inrush threat evaluation theory,a water inrush threat evaluation method based on comprehensive weighting and intuitionistic fuzzy multi-attribute decision-making method was proposed.Taking Huangyuchuan Coal Mine in Zhungeer Coalfield as an example,an evaluation index system was established based on the analysis of geological conditions in the study area,with aquifers,waterproof layers,and geological structures as the main influencing factors.The AHP and CRITIC weigh-ting method were selected as the subjective and objective weighting methods to obtain the comprehensive weights of each influencing factor.Using the intuitionistic fuzzy multi-attribute decision-making method as the basis of the evaluation model for this study,the com-promise evaluation values of each evaluation unit were calculated and ranked.The unit with a smaller compromise evaluation value had a greater water inrush threat.Using the natural classification method,the study was divided into four areas:dangerous,more dangerous,safer,and safe,and the evaluation result map of the water inrush threat in the study area was obtained.By comparing with the existing water outlet positions within the research area,it was found that the water inrush positions were all located in the dangerous and more dangerous areas,proving that the evaluation results were more accurate.
coal seam floor water inrushcomprehensive weightAHPCRITICassessment method
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NSTL
万方数据
