Data from: Destabilitation and energy characteristics of coal pillar in roadway driving along gob based on rockburst risk assessment

Roadway driving along adjacent goafs is an effective method to develop the
recovery rate of coal resources. However, rock burst triggered by dynamic
destabilization of coal pillars poses serious threats to safe and
efficient mining, thereby significantly restricting the sustainable
development of coal mines. In this study, from the perspectives of energy
accumulation and dissipation, a mathematic model of coal pillar is
established and the energy equilibrium relationship of the mechanical
system is analyzed. The rock burst mechanism of coal pillars in gob-side
entry is obtained based on a fold catastrophe mathematical model. Results
indicate that the rock burst triggered by the instability is a
destabilization phenomenon. If the stiffness factor of the mechanical
system is less than 1 and the external force is enough to lead coal
pillars to the peak stress point, then rock burst disaster occurs. The
engineering analysis and numerical simulation are conducted to study the
rock burst in the gob-side entry that occurred in Xin’an coal mine. Stress
release caused by mining can reduce the risk of rock burst to a certain
extent. The amount of elastic energy released is 6.4512×107 J, which is
close to the observation data and verifies the correctness and rationality
of the research method. The research result provides a theoretical basis
and technical guidance for rock burst prevention and control in roadway
driving along adjacent goafs.