Method for monitoring stability of underground water-sealed cave depot

The invention provides a stability monitoring method for an underground water-sealed cave depot, and the method comprises the steps: constructing a nonlinear model of the underground water-sealed cave depot according to the rock mass quality and blasting conditions, and calculating a linear model of the underground water-sealed cave depot; according to a calculation result of the nonlinear model of the underground water-sealed cavern, arranging a stable monitoring device in the constructed cavern and around the cavern; judging whether the area where the monitoring data is located is a high-risk area or not according to the comparison result of the stable monitoring data and the calculation result; according to the calculation result of the nonlinear model of the underground water-sealed cave depot and the actual excavation condition of the cave, arranging a vibration monitoring device on the peripheral side of the construction cave; judging whether an area where the vibration monitoring data is located is a h