抄録
Geological conditions should be considered when a storage cavern is constructed in rock ground for compressed air energy storage gas turbine generator which is hopeful as electric power storage in near future, and muddy slurry excavation and steel pipe shaft method is proposed in soft rocks. The water replacement type and dry type are typical in the method and their basic characteristics are studied in this paper. Most important things in realizing this method are both feasibility of excavating a cavern and its economic advantage, especially present evaluation of cavern stability in muddy slurry excavation and economically optimum depth in positioning a cavern are studied in this paper.
