The study of permeability changes of a gob structure in an underground coal mine to prevent spontaneous combustion

ABSTRACT

The distribution of permeability due to stress-strain changes in the gob region affects the air and heat distribution, forming spontaneous combustion (sponcom). The main question here is how the fluent flow model changes under changing conditions such as permeability. For this purpose, a geomechanical model based on a numerical analysis was used to determine permeability distribution. Thus, a significant advantage was provided to develop sponcom forecasting models over conventional ventilation measurements.

KEYWORDS:

• Sponcom
• underground mine
• coal mining
• gob modelling
• mine ventilation

Acknowledgments

This work was supported by Scientific and Technological Research Council of Turkey (Grant number:2219) and also by the Scientific Research Projects Coordination Unit of Istanbul University-Cerrahpasa (Project No: 30767). The authors are grateful to the Executive Secretariat of Scientific Research Projects of Istanbul University-Cerrahpasa.

Disclosure statement

No potential conflict of interest was reported by the author(s).