基于熵权物元可拓模型的采空区危险等级评价

摘要

为准确合理的对地下矿山采空区危险等级进行评价，在传统物元可拓分析模型的基础上，建立了采空区危险性评价的熵权物元可拓模型，通过熵权理论确定权重，避免了传统方法采用常权确定权重的缺陷，将该方法应用于广东大宝山矿区采空区评价，研究结果表明：采空区评级结果与现场实际情况一致，并根据危险等级对采空区进行了相应的处理措施，取得了较好的效果，该方法为采空区危险性等级评价提供了一条有效的技术途径。%In order to evaluate the risk level of goaf in underground mine accurately and reasonably, on the basis of traditional matter-element extenics model, an entropy-weight and matter-element extenics model was established to evaluate the risk level of goaf.The weights were determined by entropy-weight theory, which overcomed the disad-vantages of applying constant-weight to determine the weights in traditional method.This model was applied to eval-uate the goaf of Dabaoshan mine.The results showed that the evaluation result was consistent with the actual situa-tion.The appropriate treatment measures were conducted based on the risk level of goaf, and the better effect was achieved.It provides an effective technical way to evaluate the risk level of goaf.