Integrated Optimization of Production Scheduling and Haulage Route Planning in Open-Pit Mines

Changyou Xu, Gang Chen, Huabo Lu (), Qiuxia Zhang, Zhengke Liu and Jing Bian
Additional contact information
Changyou Xu: Inner Mongolia Dian Tou Energy Corporation Limited, Tongliao 029200, China
Gang Chen: State Power Investment Corporation Research Institute, Beijing 102209, China
Huabo Lu: School of Transportation Science and Engineering, Beihang University, Beijing 100191, China
Qiuxia Zhang: State Power Investment Corporation Research Institute, Beijing 102209, China
Zhengke Liu: School of Transportation Science and Engineering, Beihang University, Beijing 100191, China
Jing Bian: School of Transportation Science and Engineering, Beihang University, Beijing 100191, China

Mathematics, 2024, vol. 12, issue 13, 1-24

Abstract: In mining, deposits are divided into blocks, forming the basis for open-pit mine planning, covering production and haulage route planning. Current studies often stage optimization and lack the consideration of road capacity, leading to suboptimal solutions. A novel approach integrates production scheduling and haulage route planning through a bilevel optimization model. The upper-level model integrates ore mining constraints to establish a mixed-integer production scheduling model, minimizing haulage costs. Spatiotemporal correlation constraints for block mining are determined using a two-stage algorithm. The lower-level model incorporates road capacity, forming a haulage route optimization model based on multicommodity network flow. A solution algorithm with a distance penalty strategy facilitates feedback between the upper and lower levels, achieving optimal solutions. Tested on a real open-pit coal mine with over 5 million blocks, this approach reduces haulage costs by 10.06% compared to stage optimization. Additionally, this approach allows for adjusting haulage demand in both temporal and spatial dimensions, effectively preventing road congestion. This study advances rational mining processes and enhances the efficiency of open-pit mining haulage systems.

Keywords: open-pit mine; production scheduling; route planning; mixed-integer linear programming (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2227-7390/12/13/2070/pdf (application/pdf)
https://www.mdpi.com/2227-7390/12/13/2070/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jmathe:v:12:y:2024:i:13:p:2070-:d:1427628

Access Statistics for this article

Mathematics is currently edited by Ms. Emma He

More articles in Mathematics from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().