Abstract
This paper presents new design criteria for evaluating thermo-mechanical stability of rock mass around lined rock cavern for underground LNG storage, or any other liquid with comparative properties. The new criteria for evaluating thermo-mechanical stability of lined rock cavern are concerned with both initiation of new fractures and propagation of existing fractures. Initiation and propagation of such fractures will cause instability of the rock mass around the cavern, and in extreme cases, it may accompany leakage of stored gas leading to ultimate failure of the system. (A) This paper was presented at Safety in the underground space - Proceedings of the ITA-AITES 2006 World Tunnel Congress and the 32nd ITA General Assembly, Seoul, Korea, 22-27 April 2006. For the covering abstract see ITRD E129148. Reprinted with permission from Elsevier.
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