基于组合赋权的煤矿采空区岩体完整性模糊综合评价
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中图分类号：TD325 文献标志码：A
Abstract： Current studies on the evaluation of rock mass integrity in coal mine goafs mainly rely on the Rock Quality Designation （RQD）as the core parameter，lacking a multidimensional evaluation system that integrates parameterssuch as fracture development degree，spatial distribution characteristics，and RQD. Evaluating rock mass quality solely based on RQD cannot comprehensively represent the spatial distribution characteristicsoffractures，leadingto limitations inthereliabilityand universalityof theevaluationresults.To address this problem，a fuzzy comprehensive evaluation model of rock mass integrity based on combined weightingwasproposed.Themodel extracted fivekeyparameters，including fracture density，total length， maximum width， fracture rate， and RQD，from borehole television images using an improved YOLOv8 network model to establish a multidimensional evaluation indicator system for rock massThe Analytic Hierarchy Process （AHP） and Entropy Weight Method （EWM） were used to determine the subjective and objective weights， respectively，and reasonable weight distribution was achieved through combined weighting.Membership functions were established for each indicator corresponding to the fracture development degrees，and fuzzy matrix operations were applied to achieve the classification of rock mass integrity level.A validation analysis was conducted using data from the 349-350m depth interval of a coal mine goaf in Shandong Province. The results showed that the Fuzzy Comprehensive Evaluation model for rock mass integrity based on combined weighting was consistent with expert judgment results across 96.3% of the borehole depth intervals， outperforming the AHP method （94.9%） and EWM method （94.4%） . This approach effectively improved the accuracy and reliability of the rock mass integrity evaluation.
Key words： coal mine goaf rock mass； rock mass fracture development degree； rock mass integrity evaluation;borehole television technology;Analytic Hierarchy Process;Entropy WeightMethod;combined weighting; Fuzzy Evaluation Method
0引言
煤矿采空区岩体在上覆压力和地下水等因素的作用下出现裂隙，有出现地面塌陷、开裂和滑坡等地质灾害的风险，对生产安全和工程建设造成影响[1-2]。（剩余12346字）
