Abstract
This work explores a three-dimensional (3D) mechanical information model for use in the design optimization of large underground water-sealed storage caverns. First, a 3D geological model is built on the basis of the exploration results obtained at the beginning of the exploration stage. Second, a 3D numerical calculation model is established with parameters integrated from various engineering data sources, especially from geophysical explorations and field tests. Finally, the results of the numerical calculation model are used to evaluate the stability and water seal effectiveness of the surrounding rocks. The subsequent analysis of two engineering cases shows the feasibility of the technical method for the design optimization of storage caverns. The method is expected to be improved in the practical construction process in the future.
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