China is the world’s largest coal consumer, and has the most serious coal and rock dynamic disasters. In recent years, with the development of deep mining, the characteristics of strong adsorption capacity and low permeability of coal seams have become increasingly prominent. Coal and gas outbursts and rockbursts interact with and trigger each other, leading to increasingly complex Coal-gas compound dynamic disasters, which severely affect the safety and efficient production of coal mines. The Dynamics characteristics of gas-bearing coal, as an intrinsic property of the composite dynamic disaster induction and evolution mechanism, represent both a focal point and a challenging issue in current research concerning the occurrence mechanisms, prediction, and prevention of coal and gas composite dynamic disasters. The aim of this work is to reviews the research on the kinetic characteristics of gas-bearing coal over the past 30 years. It summarizes the frequency of inducing factors for coal-rock-gas composite dynamic disasters, analyzes the mechanical properties of gas-bearing coal under different loading paths, the influence of gas pressure on the mechanical behavior of gas-bearing coal, and the effects of various factors on the permeability characteristics of gas-bearing coal. Additionally, it discusses the occurrence mechanisms, prediction, and prevention of coal and gas composite dynamic disasters. Finally, it identifies key unresolved issues and suggests future research directions. • Systematic 30-year synthesis focused on “dynamic/kinetic behavior” as the core property behind coal–rock–gas compound hazards (rather than treating outburst/rockburst separately). • Trigger-factor frequency mapping for coal–rock–gas composite dynamic disasters, highlighting which drivers most often initiate coupled events. • Stress-path–oriented integration of mechanical responses of gas-bearing coal (comparing behavior under different loading paths to explain instability evolution). • Coupled “gas pressure–mechanics–permeability” framework, synthesizing how gas pressure and multiple controlling factors reshape permeability and failure, and linking this to mechanisms, prediction, prevention, and a clear research roadmap of unresolved issues.
Wang et al. (Sun,) studied this question.