Underground Rock Dissolution and Geomechanical Issues

Many soluble rocks will dissolve when in contact with fluid such as water. This transformation of rock solid into flowing may trigger the creation cavities which further lead to either smooth subsidence or sudden collapse land surface. Dissolution phenomenon can be natural human origin. paper deals problem dissolution underground and geomechanical consequences subsidence, sinkholes collapse. In this paper, induced are computed using a Diffuse Interface Model, does not require follow interfaces explicitly. We describe briefly mathematical physical framework for model. first explain transition (upscaling) multiphysics formulated at microscopic (pore-) scale level macroscopic (Darcy-) level. Rock material considered is gypsum, despite that developed method also suitable over (e.g., limestone, Halite). The second part devoted set problems dealing mechanical response mass connection process. discuss by one more gypsum lenses, stability covering, finally failure pillar an abandoned quarry. These examples, while they involve rather theoretical hypotheses, have virtue showing relevance well very diverse issues it treat.