TY - JOUR
TI - Study on the damage evolution and water loss of aquifer under coal mining
AU - Yan Heping
AU - Mu Guangyu
AU - Yang Yugui
AU - Qiu Chao
JN - Thermal Science
PY - 2024
VL - 28
IS - 2
SP - 1061
EP - 1066
PT - Article
AB - In this study, a stress-damage-seepage coupling model is established to explore the water inrush mechanism of mining workface. The laws of water loss in aquifers, damage evolution and seepage distributions of overlying strata are analyzed in the process of mining. The stress concentration phenomenon is obvious at both ends of goaf. The damage zone presents the characteristics of 'saddle shape' with higher at two ends and lower at the middle of goaf. The permeability decreases in the compressive stress zone around the goaf, and increases in the tensile stress zone. The increase of leakage affects the water resource conservation and mining safety.