Coordinated mining degree evaluation method for coal and paragenetic commercial minerals in different orebody

HUANG Bingxiang; WANG Mingke; CHEN Dayong

doi:10.26940/j.cnki.10-1912/TD.2530

Abstract：Paragenetic commercial and associated minerals in coal series are abundant in China,yet they have long been mined independently,leading to low resource utilization efficiency and serious environmental impacts,which restrict sus-tainable development.How to scientifically characterize the degree of coordination during mining has therefore become a key research challenge.This study proposes a Coordinated Mining Degree(CMD)evaluation method and develops differ-entiated models and indicator systems.Minerals are classified into general and scarce strategic categories,for which a Multi-mineral Coordinated Production Scheduling(MCPS)model and a spacing-guided model are established,respect-ively.The MCPS model maximizes economic efficiency through 0-1 integer programming and genetic algorithms to op-timize spatiotemporal coordination of multi-orebody extraction.The spacing-guided model prioritizes resource security,adopting a three-stage framework of spacing determination,risk mechanism analysis,and technical measure matching,to quantify resource preservation and pollution risks.An integrated indicator system is then formulated,covering three di-mensions—resource security and economic efficiency,mine safety,and environmental protection—with risk and state in-dicators.Comprehensive evaluation is achieved via dual-track scoring(standardization and threshold functions)combined with Analytic Hierarchy Process(AHP)-based weighting.Case studies show that the CMD of a coal-bauxite mine in Shanxi is 0.8936(good)and that of a coal-uranium mine in Xinjiang is 0.9093(excellent).These findings validate the ef-fectiveness and applicability of the proposed method in balancing economic efficiency with resource security,and demon-strate its potential to enhance the systemic and sustainable development of mineral exploitation.