The Analysis of Deep Energy Storage Rock Mass Stability Assessment Based on Fuzzy Evaluation

In order to establish an intuitive and qualitative compressed air energy storage cavern stability evaluation system, a multi-level evaluation system based on the traditional analytic hierarchy process (AHP) was proposed. On the basis of the analytic hierarchy process, combined with the entropy weight method (EWM), the model was developed into a subjective and objective comprehensive weighted model (AHP-EWM). The model uses methods based on fuzzy theory and membership theory to score and optimize the basic model. Through the engineering case verification based on the current status of the Huai’an compressed air energy storage cavern, the current evaluation result is the third level of stability, which is basically stable, verifying the effectiveness of the proposed model.