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科技导报  2014 

基于熵权属性识别模型的岩体质量分级研究

DOI: 10.3981/j.issn.1000-7857.2014.22.008, PP. 52-56

Keywords: 属性识别,熵权,岩体质量分级

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Abstract:

为克服岩体质量分级中确定评价指标权重系数带有专家打分的主观偏向性,利用熵理论客观地确定岩体质量分级评价指标的熵权系数,结合属性识别理论,建立岩体质量分级判别的属性识别模型。模型选取岩石单轴抗压强度、RQD值、结构面间距、结构面摩擦系数、岩体钻进速度和岩体声波速度6个参数作为岩体质量分级综合评价指标,以三山岛金矿7个采场为研究背景,建立岩体质量分级的属性识别模型,根据信息熵理论计算各评判指标的权重,计算各指标属性测度,利用置信度准则和评分准则,预测岩体质量排序和等级。研究结果表明,属性识别结果较RMR法更准确,评价结果客观、可信。

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