Underground hydrogen storage, Depleted gas reservoir, Salt cavern, Lined rock cavern, LCOHS
Underground hydrogen storage, Site selection, Entropy weight method, TOPSIS, Capacity evaluation
Underground hydrogen storage, rock salt, Cyclic loading, Damage evolution, Seepage behavior
Underground salt cavern, hydrogen permeation, operation frequency, operation pressure interval, leakage assessment
Salt cavern gas storage, Sediment accumulation, Storage capacity, Cavern stability, High-impurity salt formation