FEASIBILITY STUDY OF A 10-GWh TOROIDAL SUPERCONDUCTIVE MAGNETIC ENERGY STORAGE SYSTEM3. CONCEPTUAL DESIGN OF ROCK MASS SUPPORT STRUCTURE M. Shimizu, Y. Morita, Y. Yukimatsu, T. Tomozawa, Y. Tanabe, N. Takeda, H. Miyazaki, K. Kamemura, M. Yamamoto, T. Uchida, Y. Nakayama et T. YokotaJ. Phys. Colloques, 45 C1 (1984) C1-591-C1-594DOI: https://doi.org/10.1051/jphyscol:19841119