Abstract
The encroachment and intrusion of the sea water wedge toward the underground caverns in coastal rock mass are investigated experimentally and theoretically. The theoretical analysis was done by using the boundary integral equation method. The experiments are conducted in the Hele-Shaw model with two different densities of fluids. Comparing theoretical results with experimental ones, the application technique of the boundary integral equation method for analyzing the fresh-sea water interface in coastal rock aquifer was confirmed. In addition, the process of sea water encroachment around caverns was made clear.
