(1) Deep Mineral Resource Mining Theory and Technology
Rock mechanics theory and dynamic disaster prevention and control technology for deep well mining; integrated mining-dressing-backfilling theory and technology for deep well mining; intelligent continuous mining theory and technology for deep, thick and large ore bodies; deep well unloading mining technology; intelligent blasting technology based on high-stress coupled rock breaking; action mechanism and strength design of backfill under high-stress conditions; intelligent ventilation and heat hazard prevention and control technology for deep wells; energy-release support technology under high stress in deep wells.
(2) Large-Scale Mining Technology for Underground Metal Mines
Large-structure large-scale backfill mining methods: high-stage long-hole efficient backfill mining method, long-hole multi-dimensional refined ore caving technology, large-flow efficient backfilling technology.
Efficient caving mining technology: new natural caving method, high-sublevel large-spacing sublevel caving method without sill pillars, overburden regulation and controlled ore drawing technology.
(3) Efficient Mining Theory and Technology for Difficult-to-Mine Deposits
Efficient mining technology for thin ore veins: mechanized medium-deep hole mining technology for thin ore veins, mechanized bench-and-pillar method, bagged backfill continuous mining technology. Safe and efficient mining technology for soft and broken ore-rock conditions: soft and broken ore-rock environment reconstruction technology, mechanized drift-and-fill mining method, pillarless subarea and sublayer collaborative mining technology. Safe mining technology for "three-under" deposits: micro-disturbance backfill mining technology for "three-under" ore bodies, integrated optimal mining technology for simultaneous water control in backfill mining.
(4) Efficient Mining of Pillar Resources and Collaborative Goaf Treatment Technology
Precise detection technology for complex goaves; mining environment reconstruction technology for clustered goaves; backfill mining technology for pillar resources: cofferdam-type backfill mining method, backfill roadway reservation and roadway excavation and support technology; caving mining technology for pillar resources: open-pit large-area collaborative enhanced mining technology for high-risk pillars, large-scale zoned active pressure-relief mining technology for pillar groups.
(5) Intelligent Non-Explosive Continuous Mining Theory and Technology
Rock breaking mechanism of heterogeneous hard rock and combined rock breaking technology; multi-machine multi-process efficient collaborative excavation and support technology; non-explosive mechanical mining methods: non-explosive mechanical rock breaking room-and-pillar mining method for gently inclined ore bodies, two-step mechanical rock breaking backfill mining method, non-explosive mechanical rock breaking upward horizontal slicing backfill mining method.
(6) Open-Pit Safe and Efficient Mining Technology
Fragmentation design theory and stoping technology based on the "blasting-crushing-grinding" optimal economic model; cut-off grade and mining limit optimization theory and technology; slope stability analysis and control technology; open-pit controlled blasting technology: blast body movement monitoring and blast pile morphology and grade prediction, near-slope vibration-reduction blasting and high-steep slope shaping controlled blasting technology, dilution and loss control technology for irregular ore bodies.
(7) Open-Pit to Underground and Combined Mining Technology
Optimal economic boundary between open-pit and underground mining; determination of transition (isolation) layer at open-pit bottom; key technologies for parallel mining of open-pit benches and underground panels; stable production transition technology during open-pit to underground transition period; disaster control technology for open-pit and underground collaborative mining: blasting vibration disaster isolation technology for open-pit and underground collaborative mining, in-situ stress and energy regulation theory for open-pit and underground collaborative mining.
