Abstract

This paper deals with rock mechanics issues connected with storing natural gas at high pressure (P = 15 MPa) in lined rock caverns. The caverns are designed as upright cylinders and are located at a depth of 100–200 metres. Full-scale versions are assumed to be 35–40 metres in diameter and 60–70 metres in height. Most of the results that we deal with here refer to a small-scale pilot plant. The rock has been analysed using the numerical computer codes FLAC, UDEC and JOBFEM. The programs simulate the stress and deformation behaviour of a model. The paper concludes with the required properties of the rock mass necessary to keep the lining intact and the possibilities of achieving these in crystalline bedrock.

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