结合DEMATEL-MABAC方法的CMRR法定量顶板落势案例研究

IF 1.1 Q3 MINING & MINERAL PROCESSING
S. Mohammadi, M. Babaeian, M. Ataei, K. Ghanbari
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引用次数: 2

摘要

本文采用DEMATEL-MABAC方法,利用煤矿顶板额定值(CMRR)参数对煤矿顶板落顶势进行量化。为此,将顶板压重间隔作为顶板稳定性的定量判据,对东奥尔博斯煤矿公司15个采场的顶板直接冒落势进行了量化排序。为此,在专家判断的基础上,采用模糊DEMATEL法确定各参数的权重,并结合MABAC法对采场(备选方案)进行量化排序。结果表明,直接顶板的“顶板UCS”和“节理间距”是控制采场顶板冒落的最重要参数;“关节持续性”也是一个非常重要的参数。研究结果证实了巷道岩体的综合强度对落势起主要作用。将权重区间和模型的决定系数R2与原CMRR的决定系数R2进行比较,结果表明,新模型对顶板质量的量化精度提高了15%以上。研究结果表明,将该方法与特定矿山地质条件下的CMRR方法相结合,对顶板质量及其坍塌潜力进行评估,与原有的CMRR方法相比,具有更高的性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Quantifying Roof Falling Potential based on CMRR Method by Incorporating DEMATEL-MABAC Method; A Case Study
This work incorporates the DEMATEL-MABAC method for quantifying the potential of roof fall in coal mines by means of the coal mine roof rating (CMRR) parameters. For this purpose, considering the roof weighting interval as a quantitative criterion for the stability of the roof, the immediate roof falling potential was quantified and ranked in 15 stopes of Eastern Alborz Coal Mines Company. In this regard, on the basis of the experts’ judgments, the fuzzy DEMATEL method was used for designation weights of the parameters, and the MABAC method was incorporated to quantify and rank the stopes (alternatives). “UCS of roof” and “joint spacing” in the immediate roof were found to be the most important parameters that controlled roof falling in stopes; and “joint persistence” was also found to be a quite significant parameter. Finding confirms that overall strength of rood rock mass plays a main role in the falling potential. Comparison of the coefficients of determination (R2) between the weighting interval and proposed model with that and original CMRR indicated more than 15% increase, which represented that the new proposed model was more accurate to quantify roof quality. The findings of this work show that using this combined method and specializing the CMRR method for a given mine geo-condition to assess the quality of the roof and its potential of collapse possesses a higher performance when compared with the original CMRR method.
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来源期刊
Journal of Mining and Environment
Journal of Mining and Environment MINING & MINERAL PROCESSING-
CiteScore
1.90
自引率
25.00%
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