This study focused on the slope stability of cross seasonal thermal storage water tank. A three-dimensional slope model was established using Midas GTS NX software to investigate the effects of slope inclination

slope height

soil parameters

water level changes

and sudden rise and drawdown of water level on slope stability. The results indicate that as the slope inclination and height increase

the factor of safety decreases

while the decrease in water level can enhance the safety factor. Under different soil parameter conditions

the stability of clay slopes is the best

while the stability of fine sand slopes is relatively poor. The rapid changes in water level have a significant impact on the stability of slopes

and hence more in-depth research is needed to ensure the safety of engineering.