TY - JOUR
TI - Deformation and heat transfer modelfor surrounding rock in thick loose layer-extra thick coal seam working face
AU - Liu Fei
AU - Ge Guang-Heng
AU - Gong Peng
AU - Fu Xin-Lei
JN - Thermal Science
PY - 2025
VL - 29
IS - 2
SP - 1095
EP - 1100
PT - Article
AB - By using theoretical analysis and numerical calculation, the mechanical  properties of the surrounding rock of the thick loose layer and extra thick  coal seam comprehensive discharge face were deeply studied. The  multi-parameter critical control equation for the sudden change of the roof  plate along the working face was derived, and the influence of variables  such as fracture block degree, rotation angle, breaking angle, friction  factor and corner end extrusion coefficient on the stability of the roof  “rotation-slide” was obtained. A heat transfer model for the broken layers  under the underground ventilation is proposed. This study has great  significance for the safe mining and high yield and efficiency of the mine.