Joint simulation of coal quality attributes using a new simulated annealing-based method of diagonalisation

IF 2.7 3区 工程技术 Q3 ENVIRONMENTAL SCIENCES
B. Sohrabian, Saeed Soltani-Mohammadi, A. Tercan
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引用次数: 0

Abstract

ABSTRACT A new approach is proposed for simultaneous diagonalisation of variance-covariance matrices to generate spatially orthogonal factors using based on simulated annealing method. Simultaneous diagonalisation was applied to three quality attributes of a coal seam. The proposed method was successful in diagonalisation due to creating factors with cross-variograms that lie in tighter intervals compared with minimum/maximum autocorrelation factors (MAF). Simulation through the proposed approach showed variable dependent results in terms of reproducing mean values, variances, correlation coefficients, and auto-variograms of variables. However, the new approach showed advantage over MAF in reproducing the cross-variograms of variables, especially in the downhole direction.
基于模拟退火对角化的煤质属性联合模拟
摘要提出了一种基于模拟退火方法的方差-协方差矩阵同时对角化生成空间正交因子的新方法。将同时对角化应用于煤层的三个质量属性。所提出的方法在对角化方面是成功的,因为与最小/最大自相关因子(MAF)相比,所创建的因子具有更紧密的区间内的交叉变差函数。通过所提出的方法进行的模拟显示了在重现变量的均值、方差、相关系数和自方差图方面的变量相关结果。然而,在再现变量的交叉方差图方面,特别是在井下方向上,新方法显示出优于MAF的优势。
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来源期刊
International Journal of Mining Reclamation and Environment
International Journal of Mining Reclamation and Environment ENVIRONMENTAL SCIENCES-MINING & MINERAL PROCESSING
CiteScore
5.70
自引率
8.30%
发文量
30
审稿时长
>12 weeks
期刊介绍: The International Journal of Mining, Reclamation and Environment published research on mining and environmental technology engineering relating to metalliferous deposits, coal, oil sands, and industrial minerals. We welcome environmental mining research papers that explore: -Mining environmental impact assessment and permitting- Mining and processing technologies- Mining waste management and waste minimization practices in mining- Mine site closure- Mining decommissioning and reclamation- Acid mine drainage. The International Journal of Mining, Reclamation and Environment welcomes mining research papers that explore: -Design of surface and underground mines (economics, geotechnical, production scheduling, ventilation)- Mine planning and optimization- Mining geostatics- Mine drilling and blasting technologies- Mining material handling systems- Mine equipment
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