基于包络线的云相似度及其在安全评价中的应用

发布时间：2018-06-25 05:41

  本文选题：安全工程 + 安全评价　； 参考：《安全与环境学报》2017年04期

【摘要】：在安全评价中,专家给出的数据一般带有定性和定量、模糊性和随机性、不确定性等特点。为了表示这些特点,并将这些信息进行分析、合并,进而达到化简的目的,提出一种基于包络线的云模型方法。该方法用云模型表示专家对某一问题给定的数据,形成多位专家对该问题的多个云模型。同时根据云模型形态特点,构建云模型的上下包络线,并对包络线之间的云滴区域进行积分。最终通过积分区域重叠部分与积分区域的比例关系来判断云模型的相似程度,达到将这些专家信息化简的目的。给出了4种基于相似度的评价语义化简规则。应用该方法分析巷道冒顶风险中稳定岩层距巷道顶板表面距离的中度风险语义。结果表明,两位专家对于该问题的看法既有联系又有区别。最后给出了该算法的优点。
[Abstract]:In the safety evaluation, the data given by experts are generally qualitative and quantitative, fuzzy and random, uncertainty and other characteristics. In order to express these characteristics and analyze and merge the information to achieve the purpose of simplification, a cloud model method based on envelope is proposed. In this method, the data given by experts to a problem is represented by cloud model, and several cloud models of multiple experts on this problem are formed. At the same time, according to the characteristics of cloud model morphology, the upper and lower envelope lines of cloud model are constructed, and the cloud droplet region between the envelope lines is integrated. Finally, the similarity degree of cloud model can be judged by the proportion relationship between the overlap part of the integral region and the integral region, and the purpose of simplifying these experts is achieved. Four similarity-based rules for semantic simplification of evaluation are presented. This method is used to analyze the medium risk semantics of the stability of rock layer to the roof surface of roadway in the risk of roadway roof fall. The results show that the views of the two experts on this issue are both relevant and different. Finally, the advantages of the algorithm are given.
【作者单位】： 辽宁工程技术大学安全科学与工程学院;矿山热动力灾害与防治教育部重点实验室;辽宁省隧道与地下结构工程技术研究中心大连交通大学;辽宁工程技术大学力学与工程学院;
【基金】：国家自然科学基金项目(61350003,51674127,51050003)
【分类号】：X913
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本文编号：2064839