变权靶心贴近度在岩爆烈度预测中的应用

发布时间：2018-04-15 04:39

本文选题：爆炸力学 + 靶心贴近度　；参考：《爆炸与冲击》2015年01期

【摘要】：针对岩爆烈度预测的不确定性和影响岩爆发生的各单个指标间互不相容的问题,将变权理论和靶心贴近度相结合,进行岩爆烈度预测。首先,该方法在考虑评判者偏好度的基础上,引入了一种均衡函数,给出了一种变权模式,用来计算各个指标的权重;然后,该方法构造了一种区间关联函数,将单指标关联函数的最大值作为靶心坐标,根据样本与靶心的贴近度来预测岩爆烈度,即靶心贴近度值越大,则岩爆烈度越接近该贴近度所对应的岩爆烈度等级;最后,将该方法应用于灵宝东峪矿区、冬瓜山铜矿和秦岭隧道岩爆预测等实例中,结果表明:该方法不仅可以准确、合理地预测岩爆烈度,而且相比其他方法,该方法不需要任何先验知识,使用起来更直接、更方便。
[Abstract]:Aiming at the uncertainty of prediction of rock burst intensity and the incompatibility of each single index affecting the occurrence of rock burst, the variable weight theory and the close degree of target center are combined to predict the intensity of rock burst.First of all, on the basis of considering the degree of preference of the judge, the method introduces a kind of equalization function, and gives a variable weight model to calculate the weights of each index, and then, the method constructs an interval correlation function.The maximum value of the single index correlation function is taken as the target center coordinate, and the rock burst intensity is predicted according to the closeness degree of the sample and the target center, that is, the larger the target center closeness, the closer the rock burst intensity is to the corresponding rock burst intensity grade.The method has been applied to the prediction of rock burst in Dongyu mining area of Lingbao, Dongguashan Copper Mine and Qinling Tunnel. The results show that the method can not only accurately and reasonably predict the intensity of rock burst, but also compare with other methods.This method does not require any prior knowledge and is more direct and convenient to use.
【作者单位】：中南大学有色金属成矿预测教育部重点实验室;中南大学地球科学与信息物理学院;
【基金】：国家自然科学基金项目(51074180)
【分类号】：TU45;O382.4

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