A Multi-Equipment Task Assignment Model for the Horizontal Stripe Pre-Cut Mining Method

Siyu Tu, Mingtao Jia (), Liguan Wang, Shuzhao Feng and Shuang Huang
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Siyu Tu: School of Resources and Safety Engineering, Central South University, Changsha 410083, China
Mingtao Jia: School of Resources and Safety Engineering, Central South University, Changsha 410083, China
Liguan Wang: School of Resources and Safety Engineering, Central South University, Changsha 410083, China
Shuzhao Feng: School of Resources and Safety Engineering, Central South University, Changsha 410083, China
Shuang Huang: School of Resources and Safety Engineering, Central South University, Changsha 410083, China

Sustainability, 2022, vol. 14, issue 24, 1-18

Abstract: This paper proposes a multi-equipment task assignment model for the horizontal stripe pre-cut mining method to address the problem of cooperative scheduling operation of multi-equipment in underground metal mines under complex constraints. The model is constructed with multiple objectives, including operation time, operational efficiency, equipment utilization rate, and ore grade fluctuation by considering the constraints of time, space, equipment, and processes. The NSGA-III algorithm is used to obtain the solution. The effectiveness of the algorithm is tested based on the actual data from the Chambishi Copper Mine. The results show that the average equipment utilization rate is 51.25%, and the average ore output efficiency is 278.71 tons/hour. The NSGA-III algorithm can quickly generate the optimal multi-equipment task assignment solution. The solution reduces the interference of manual experience and theoretically improves the actual operation of the mine.

Keywords: muti-equipment task assignment; horizontal stripe pre-cut mining method; operational continuity; NSGA-III algorithm; underground metal mine (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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