To study the influence of mining disturbance and temperature on coal permeability in front of the working face

the fracture deformation factors caused by mining stress and temperature were divided into three parts: effective stress

adsorption and thermal expansion. The fracture strain expression was derived from damage mechanics

adsorption theory and thermal stress theory. The expression included the coupling damage effect of disturbance stress and temperature. Furthermore

the permeability model of coal under the influence of mining disturbance and temperature was established. The permeability model was verified and analyzed according to two permeability tests. One was changing temperature and the other was changing the disturbance stress and temperature simultaneously. In addition

the parameter sensitivity was also analyzed. The results show that the model can well represent the evolution process of coal permeability with the mining disturbance and temperature effect. Under the same temperature

permeability increases with the increase of internal swelling ratio. Permeability decreases with the increase of thermal internal swelling ratio. The research results will provide useful reference for the development of coal mining and gas extraction technology.