直孔掏槽一次成井的改進(jìn)TOPSIS-CV掏槽方式評價(jià)模型
[Abstract]:In order to solve the problem of how to choose the cutting mode in a straight hole cutting, the orthogonal projection method which replaces the Euclidean distance by the vertical plane distance is combined with the traditional TOPSIS by introducing the technique of approximate ideal solution (TOPSIS),). A comprehensive evaluation model based on improved TOPSIS method is proposed. Seven evaluation indexes are selected from three aspects of safety, technology and economy, and the index weight is determined by using variation coefficient method (CV) to avoid the interference of human factors in subjective weight assignment method, which makes the weight assignment more objective. The evaluation model is applied to a single goaf treatment test in a mine. The four cutting methods designed in the preliminary design are evaluated synthetically and the best cutting method is applied to the industrial test. The results show that the vertical distance from each scheme to the positive ideal solution is 0.125 ~ (94) ~ 0.089 ~ (89) ~ 0.060 ~ 40 ~ (0.041) 53, respectively, and the fourth scheme is considered to be the best one. Compared with the traditional TOPSIS method, the evaluation results of the improved TOPSIS method are more obvious, and it is easier to select the best scheme. The top and bottom of the patio formed by the best scheme can reach the design specification and the effect is good.
【作者單位】: 中南大學(xué)資源與安全工程學(xué)院;
【基金】:國家自然科學(xué)基金資助項(xiàng)目(51374243) 中南大學(xué)博士研究生自主探索創(chuàng)新項(xiàng)目(2017zzts186)~~
【分類號】:TD236
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