Abstract
The rock mechanical design of storage caverns in salt requires the analysis of the stability and the usability of the cavern over the planned operating time period. This design includes the build up of a rock mass model and a numerical model taking into account the geological situation, load conditions, geometrical conditions, and material parameters. The paper describes the design fundamentals and the necessary design parameters. In particular, the LUBBY2 constitutive model is considered which describes the nonlinear creep behaviour of rock salt. Examples of a finite-element analysis of caverns and the related stability and usability criteria are given.
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