Zujie Zou

On open-pit tricone rigs, formation perception, parameter decision, actuator control and stuck-pipe monitoring have usually run as separate functions with limited information transfer. A CCTEG Xi'an team closed them into one loop: multisource drilling data identify lithology and drillability online, case matching recommends feed and rotary speeds, robust control tracks the setpoints, and a separate safety branch watches for drill sticking. Across 322 blastholes and 5426.7 m of drilling, lithology accuracy exceeded 85%, 34 of 38 sticking events were detected, and mean penetration rate reached 35 m/h.

On open-pit tricone rigs, formation perception, parameter decision, actuator control and stuck-pipe monitoring have usually run as separate functions with limited information transfer. A CCTEG Xi'an team closed them into one loop: multisource drilling data identify lithology and drillability online, case matching recommends feed and rotary speeds, robust control tracks the setpoints, and a separate safety branch watches for drill sticking. Across 322 blastholes and 5426.7 m of drilling, lithology accuracy exceeded 85%, 34 of 38 sticking events were detected, and mean penetration rate reached 35 m/h.