关键词: 硬岩, 深部矿山, 岩爆风险, 防控技术

Abstract: In order to understand the research progress of rockburst risk prevention technology in deep hard rock mines, the relevant literature was summarized. Firstly, a general idea of rockburst risk prevention was proposed from three perspectives: avoiding rockburst before the occurrence, reducing the hazard of rockburst during the incident, and evading the damage of rockburst afterwards. Then, the types of rockburst prevention technology were summarized based on this idea. Additionally, the connotation of each technology and its prevention mechanism were analyzed in detail. Finally, the future development direction of rockburst risk prevention technology was prospected. The results show that the rockburst risk prevention technologies for deep hard rock mines can be summarized into five aspects: mining design, stress relief technology, alteration of rock formation properties, rock mass support and personnel exposure. Among them, the mining design includes mining methods, stope parameters, pillar retention, mining sequence, recovery rate, and goaf treatment. Stress relief technology includes distress blasting, stress relief slots, stress relief tunnels, stress relief holes and stress relief fissures. Alteration of rock formation properties includes hydraulic fracturing, confined blasting and water injection softening. Rock mass support includes surface support, internal support and combined support. Personnel exposure includes re-entry protocol, remote equipment and personnel protection. In the future, the prevention guidelines of rockburst risk in deep hard rock mines can be established from the construction of prevention systems for different types and risk levels of rockburst, research of new technologies, and evaluation of prevention time and effect.

Key words: hard rock, deep mine, rockburst risk, prevention technology