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Optimization for Blasting Scheme of Crown-Sill Pillar Based on CW-GT and GC-WTOPSIS


Affiliations
1 School of Nuclear Resources Engineering, University of South China, Hengyang, Hunan 421001, China
 

Blasting scheme for crown-sill pillar of a lead–zinc mine was optimized by a new combination optimization model on the basis of CW-GT and GC-WTOPSIS. Nine main evaluation indices influencing blasting were chosen from economy, technology and safety aspects to establish the synthetic evaluation index system of four blasting schemes. Then the synthetic superiority degrees of the four schemes were determined with the basic theory of CW-GT and GC-WTOPSIS. Scheme- III (burn cut, inclined hole and side collapse with an angle of 80°) had the highest superiority degree and hence was confirmed as the best. The result was consistent with AHP-TOPSIS, BP neural network and catastrophe progressing model. The practice showed that the selected blasting scheme achieved the desired blasting effect, and the new method was suitable for optimization of blasting scheme, which provided a new way for scientific and reliable optimization of similar programmes.

Keywords

Blasting Scheme, Combination Weight Based on Game Theory, CW-GT, GC-WTOPSIS.
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  • Optimization for Blasting Scheme of Crown-Sill Pillar Based on CW-GT and GC-WTOPSIS

Abstract Views: 344  |  PDF Views: 110

Authors

Qiucai Zhang
School of Nuclear Resources Engineering, University of South China, Hengyang, Hunan 421001, China
Lei Zuo
School of Nuclear Resources Engineering, University of South China, Hengyang, Hunan 421001, China
Qing Yu
School of Nuclear Resources Engineering, University of South China, Hengyang, Hunan 421001, China
Yulong Liu
School of Nuclear Resources Engineering, University of South China, Hengyang, Hunan 421001, China
Yushan Yang
School of Nuclear Resources Engineering, University of South China, Hengyang, Hunan 421001, China
Dexing Ding
School of Nuclear Resources Engineering, University of South China, Hengyang, Hunan 421001, China

Abstract


Blasting scheme for crown-sill pillar of a lead–zinc mine was optimized by a new combination optimization model on the basis of CW-GT and GC-WTOPSIS. Nine main evaluation indices influencing blasting were chosen from economy, technology and safety aspects to establish the synthetic evaluation index system of four blasting schemes. Then the synthetic superiority degrees of the four schemes were determined with the basic theory of CW-GT and GC-WTOPSIS. Scheme- III (burn cut, inclined hole and side collapse with an angle of 80°) had the highest superiority degree and hence was confirmed as the best. The result was consistent with AHP-TOPSIS, BP neural network and catastrophe progressing model. The practice showed that the selected blasting scheme achieved the desired blasting effect, and the new method was suitable for optimization of blasting scheme, which provided a new way for scientific and reliable optimization of similar programmes.

Keywords


Blasting Scheme, Combination Weight Based on Game Theory, CW-GT, GC-WTOPSIS.

References





DOI: https://doi.org/10.18520/cs%2Fv115%2Fi1%2F122-128