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Metal Mine ›› 2014, Vol. 43 ›› Issue (07): 32-36.

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Optimization of AHP-Fuzzy Parameters in Shallow Hole Room and Pillar Mining Method with Subsequence Filling

Chen Chang1,Tan Zhuoying1,Chen Shouxue2,Huang Zhenjin3,Xie Zhiqian3,Li Zhaohui3   

  1. 1.School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China;2.Beijing Hongtianyilai Company Limited of Electronic Science and Technology,Beijing 100041,China;3.Yongping Copper Mine,Jiangxi Copper Company Limited,Shangrao 334506,China
  • Online:2014-07-15 Published:2015-01-08

Abstract: According to the occurrence condition of Yongping orebody and the firmness of rocks,the shallow-hole room and pillar mining method with subsequence filling is adopted.For this,three kinds of mining schemes for pillar and chamber′s design was put forward.Since there are many fuzzy information in practical engineering of the shallow hole room and pillar mining method with subsequence filling,the analytic hierarchy fuzzy comprehensive evaluation method (AHP-Fuzzy) was used to optimize the stope structure parameters,in order to realize the safe mining,economic and efficient development.With the aid of AHP method,AHP and Fuzzy comprehensive evaluation method can be used to construct judgment matrix and determine the level of the index weight; Then,with the method of fuzzy mathematics,and fully considering the practical engineering experience,the membership degree matrix influencing the mining scheme was proposed.According to the weight vector and the membership degree matrix,the comprehensive evaluation vector is determined,and the optimal scheme is given.This method comprehensively considers the influence of various factors,and combines with the quantitative and the qualitative analysis.It fully reflects the fuzziness of the evaluation factors and evaluation process,and reduces the subjective influence on evaluation,and improves the credibility of evaluation.Optimization results show that the scheme 2 owns comprehensive superiority degree of 92.52%,and is superior to other two schemes,so the scheme 2 is the optimal one.

Key words: Filling mining method, Parameters optimization, Analytic hierarchy process, Fuzzy integrated evaluation, Mining program