European Rock Mechanics Symposium (EUROCK 2010), Lausanne, İsviçre, 15 - 18 Haziran 2010, ss.721-722
Modeling and analysis of underground structures remain an important topic in rock mechanics. The majority of underground structures have originally regular geometry. However, in case of application of solution mining, underground openings having irregular geometries are created. Solution of stress state and corresponding deformations of such openings is almost impossible, hence, it is viable to apply numerical methods. Unfortunately, no comprehensive numerical modeling of an underground cavern with irregular geometry has been found, to the authors knowledge, in the literature. This paper presents a part of ongoing research on numerical modeling of stages of solution mining during formation of a cavern, application of different levels of inner pressure depending on LNG amount in the cavern and creep behavior of the cavern during its lifetime by considering loading and unloading cycles. Numerical model of a hypothetical underground LNG storage cavern having an irregular geometry and application of inside pressure have been achieved by using FLAC3D.